Version:            (using KDE 4.1.0)
OS:                Linux
Installed from:    Slackware Packages

This is the output I receive after placing the mouse over the taskbar.  Usually plamsa will restart, although not always.  I am using a realvnc server (version 4.1)  on a slackware based (version 12.1) computer with KDE 4.1 freshly installed.  When using KDE directly on my computer (not through a remote connection) this does not happen.  The realVNC client is running on a windows based computer (Windows XP).  Plamsa will consistenly crash whenever I hover my mouse over the taskbar.

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Plasma crashed, attempting to automatically recover                            
KCrash: crashing... crashRecursionCounter = 2                                  
KCrash: Application Name = plasma path = <unknown> pid = 25217                 
<unknown program name>(25230)/ checkComposite: Plasma lacks an argb visual 0x0 0                                                                              
<unknown program name>(25230)/ checkComposite: Plasma is COMPOSITE-less on 0x806e128                                                                          
plasma(25231) PlasmaApp::PlasmaApp: Setting the pixmap cache size to 3806 kilobytes                                                                           
plasma(25231)/kdecore (KSycoca) KSycocaPrivate::openDatabase: Trying to open ksycoca from  "/var/tmp/kdecache-root/ksycoca4"                                  
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: positioning non- horizontal panel; forced? false                                           
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: moved to QPointF(11030, -44)                                                               
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: positioning non- horizontal panel; forced? false                                           
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: moved to QPointF(11030, -44)                                                               
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: positioning  horizontal panel; forced? true                                                
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: moved to QPointF(0, -44)                                                                   
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: positioning  horizontal panel; forced? false                                               
plasma(25231)/libplasma Plasma::ContainmentPrivate::positionPanel: moved to QPointF(0, -44)                                                                   
plasma(25231) Panel::constraintsEvent: constraints updated with 15 !!!!!!      
plasma(25231) Panel::constraintsEvent: constraints updated with 2 !!!!!!       
plasma(25231) SystemTray::updateWidgetGeometry: Problem view is NULL           
plasma(25231) SystemTray::updateWidgetGeometry: Problem view is NULL           
plasma(25231) HotplugEngine::onDeviceAdded: add hardware solid :  "/org/freedesktop/Hal/devices/volume_uuid_a3f29908_b084_4139_b6ab_c9a3d76954e1"             
plasma(25231) HotplugEngine::onDeviceAdded: add hardware solid :  "/org/freedesktop/Hal/devices/platform_floppy_0_storage"                                    
QLayout: Attempting to add QLayout "" to Plasma::Dialog "", which already has a layout                                                                        
plasma(25231) DeviceNotifier::onSourceAdded: DeviceNotifier:: source added "/org/freedesktop/Hal/devices/platform_floppy_0_storage"                           
Unrecognized character: /                                                      
Unrecognized character: /                                                      
ERROR: syntax error                                                            
plasma(25231) DeviceNotifier::onSourceAdded: DeviceNotifier:: source added "/org/freedesktop/Hal/devices/volume_uuid_a3f29908_b084_4139_b6ab_c9a3d76954e1"    
Unrecognized character: /                                                      
Unrecognized character: /                                                      
ERROR: syntax error                                                            
plasma(25231) Clock::init: showTimezone: false                                 
plasma(25231)/kdecore (K*TimeZone*) KSystemTimeZonesPrivate::instance: instance(): ... initialised                                                            
plasma(25231)/kdecore (K*TimeZone*) KSystemTimeZonesPrivate::readConfig: readConfig(): local zone= "America/Toronto"                                          
plasma(25231)/kdecore (K*TimeZone*) KSystemTimeZonesPrivate::readZoneTab: readZoneTab( "/usr/share/zoneinfo/zone.tab" )                                       
plasma(25231) Panel::constraintsEvent: constraints updated with 32 !!!!!!      
plasma(25231) PlasmaApp::createView: Containment name: "Panel" | type 1 | screen: 0 | geometry: QRectF(0,-44 1024x38) | zValue: 150                           
plasma(25231)/libplasma Plasma::ViewPrivate::updateSceneRect: !!!!!!!!!!!!!!!!! setting the scene rect to QRectF(0,-44 1024x38) associated screen is 0        
plasma(25231) PanelView::updatePanelGeometry: PanelView(0x8348770) thinks its panel is at  QRect(0,730 1024x38)                                               
plasma(25231) PanelView::PanelView: Panel geometry is QRectF(0,-44 1024x38)    
plasma(25231) PanelView::updateStruts: screen l/r/b/t offsets are: 0 0 0 0     
plasma(25231) PanelView::updateStruts: screen l/r/b/t offsets are: 0 0 0 0     
plasma(25231) PanelView::updateStruts: screen l/r/b/t offsets are: 0 0 0 0     
plasma(25231) DefaultDesktop::reloadConfig: Using configured wallpaper "/usr/share/wallpapers/Blue_Curl/contents/images/1024x768.jpg"                         
plasma(25231) PlasmaApp::createView: Containment name: "Desktop" | type 0 | screen: 0 | geometry: QRectF(0,0 1024x768) | zValue: 0                            
plasma(25231) PlasmaApp::createView: creating a view for 0 and we have 1 screens
plasma(25231)/libplasma Plasma::ViewPrivate::updateSceneRect: !!!!!!!!!!!!!!!!! setting the scene rect to QRectF(0,0 1024x768) associated screen is 0
X Error: BadWindow (invalid Window parameter) 3
  Major opcode: 18 (X_ChangeProperty)
  Resource id:  0x26000f5
plasma(25231) SystemTray::updateWidgetGeometry: start up delay
plasma(25231) SystemTray::updateWidgetGeometry: start up delay
plasma(25231) SystemTray::updateWidgetGeometry: start up delay
plasma(25231) DeviceNotifier::dataUpdated: DeviceNotifier::solidDeviceEngine updated "/org/freedesktop/Hal/devices/platform_floppy_0_storage"
plasma(25231) DeviceNotifier::dataUpdated: DeviceNotifier::solidDeviceEngine updated "/org/freedesktop/Hal/devices/volume_uuid_a3f29908_b084_4139_b6ab_c9a3d76954e1"
QPainter::begin: Cannot paint on a null pixmap
QPainter::setCompositionMode: PorterDuff modes not supported on device
QPainter::setCompositionMode: PorterDuff modes not supported on device
QPainter::setCompositionMode: PorterDuff modes not supported on device
plasma(25231) SystemTray::updateWidgetGeometry: start up delay
plasma(25231) SystemTray::updateWidgetGeometry: start up delay
QPainter::setCompositionMode: PorterDuff modes not supported on device
QPainter::setCompositionMode: PorterDuff modes not supported on device
QPainter::setCompositionMode: PorterDuff modes not supported on device
QObject: Do not delete object, 'unnamed', during its event handler!
plasma(25231) SystemTrayContainer::embedSystemTrayClient: attempting to embed 33554902
plasma(25231) SystemTrayContainer::embedSystemTrayClient: attempting to embed 14680742
QPainter::setCompositionMode: PorterDuff modes not supported on device
QPainter::setCompositionMode: PorterDuff modes not supported on device
QPainter::setCompositionMode: PorterDuff modes not supported on device