Comment 13 for bug 334657

Confirmed here too. I've been seeing this with VLC since the start of the Jaunty development cycle but as I rarely use it didn't bother about it. I then found that Skype suffered the same problem. I tried using qtconfig-qt4 and it suffered the same.

Originally I thought this was a font-file or font-cache corruption issue but can confirm that disabling the sub-pixel font rendering does work-around the issue although makes every other window's fonts look very grainy.

Raising the importance and setting a milestone.