Created attachment 57305 [details] This show the problem Version: unspecified (using Devel) OS: Linux In some cases, maybe 5 times a day, the task manager shows two windows overlapping with texts mixed up Reproducible: Sometimes Steps to Reproduce: Not sure, just open/close windows and select "Expand group" for some groupped windows Actual Results: Boxes for two windows share the same screen space Expected Results: They are separate I use NVidia binary driver I used "Expand" group several times to disable groupping Version plasma-desktop 4.5.95-0ubuntu1~maverick~ppa4
*** This bug has been marked as a duplicate of bug 224447 ***