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Build Identifier: 

during play  I can move the card to a possible position but then before being positionned normally there it is set slightly beside and after a pause during which the game is frozen normal behaviour of game resumes ; it may also happen that the card does not follow the cursor ; here is what I collect in a console :
$ kpat
kpat(2832)/KSharedDataCache: Unable to free up memory for "1338-665-background" 
kpat(2832)/KSharedDataCache: Unable to free up memory for "1338-666-background" 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg" )  
Transitioning to state "playing" 
State change 
Moving from "null" 0 to "ready" 1 
About to finish 
State change 
Moving from "ready" 1 to "paused" 4 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg 
State change 
Moving from "paused" 4 to "playing" 2 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
About to finish 
State change 
Moving from "paused" 4 to "ready" 1 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg" )  
Transitioning to state "playing" 
About to finish 
State change 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg 
Moving from "ready" 1 to "paused" 4 
State change 
Moving from "paused" 4 to "playing" 2 
About to finish 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
State change 
Moving from "paused" 4 to "ready" 1 
Transitioning to state "ready" 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg" )  
Transitioning to state "playing" 
About to finish 
State change 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg 
Moving from "ready" 1 to "paused" 4 
State change 
Moving from "paused" 4 to "playing" 2 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
About to finish 
State change 
Moving from "paused" 4 to "ready" 1 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg" )  
Transitioning to state "playing" 
About to finish 
State change 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg 
Moving from "ready" 1 to "paused" 4 
State change 
Moving from "paused" 4 to "playing" 2 
About to finish 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
State change 
Moving from "paused" 4 to "ready" 1 
Transitioning to state "ready" 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg" )  
Transitioning to state "playing" 
State change 
Moving from "ready" 1 to "paused" 4 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg 
About to finish 
State change 
Moving from "paused" 4 to "playing" 2 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
About to finish 
State change 
Moving from "paused" 4 to "ready" 1 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg" )  
Transitioning to state "playing" 
About to finish 
State change 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg 
Moving from "ready" 1 to "paused" 4 
State change 
Moving from "paused" 4 to "playing" 2 
About to finish 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
State change 
Moving from "paused" 4 to "ready" 1 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg" )  
Transitioning to state "playing" 
Transitioning to state "ready" 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg" )  
Transitioning to state "playing" 
About to finish 
State change 
Moving from "ready" 1 to "paused" 4 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg 
State change 
Moving from "paused" 4 to "playing" 2 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
About to finish 
State change 
Moving from "paused" 4 to "ready" 1 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg" )  
Transitioning to state "playing" 
Transitioning to state "ready" 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg" )  
Transitioning to state "playing" 
About to finish 
State change 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg 
Moving from "ready" 1 to "paused" 4 
State change 
Moving from "paused" 4 to "playing" 2 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
About to finish 
State change 
Moving from "paused" 4 to "ready" 1 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-pickup.ogg" )  
Transitioning to state "playing" 
Transitioning to state "ready" 
Setting new source 
New source:  QUrl( "file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg" )  
Transitioning to state "playing" 
About to finish 
State change 
Stream changed to file:///usr/share/kde4/apps/kpat/sounds/card-down.ogg 
Moving from "ready" 1 to "paused" 4 
State change 
Moving from "paused" 4 to "playing" 2 
About to finish 
Transitioning to state "ready" 
State change 
Moving from "playing" 2 to "paused" 4 
State change 
Moving from "paused" 4 to "ready" 1 

Reproducible: Always

Steps to Reproduce:
1. try to move card
2.
3.
Actual Results:  
the first tilme the card follow the cursor but does not position itself correctly on target ; I have to wait until move it completed before pursuing the game ; after the card does not follow the cursor ; motion completed after ; unplayable.

Expected Results:  
smooth play as before

I have 2 machines ; the "same" version run from other computer runs perfectly well ; stange when run from console I receive no messages whatsoever : what is the difference in installation process?