Version: (using Devel) Installed from: Compiled sources I've typed some text into the microblogging widget ("Timeline" tab), then selected all, cut and pasted it. When pasting the text again, it appeared as black text on black background. Selecting all again made it visible (blue background white text). Also, I could not reproduce it. This looks like a nasty bug, with a simple workaround, but maybe you have some hint. I've experienced something similar a while ago (but then it happened all the time, also while typing - which I have not tested in this case): Bug 195040 (in Kopete) The text in question is: Upgraded to #kubuntu #lucid. #KDE 4.4 looks gorgeous.
Just reproduced it in 4.5 Beta 2, although I am not able to reproduce it again after this first time.
*** This bug has been marked as a duplicate of bug 272186 ***