Version: (using KDE 4.2.0) Installed from: Ubuntu Packages All the calendar views are blank when selected, except the month one. When selecting one of the views (e.g. Week, or Day) I get a blank gray screen. This is a 4.2.1 regression, it was fine with KDE 4.2.0.
Please read the solution in bug 185852 comment #4 *** This bug has been marked as a duplicate of bug 185852 ***
I sent all the packagers a note about how to fix this in their respective distributions. So you might want to nag Ubuntu to apply the fix and send out an update.