ForeverYoung : can you give me the url of a feed with russian characters ?

fpp : it's QtWebkit from the beginning. Maybe the problem appeared with PR 1.3 and QT 4.7. The bug is in the QWebview so i don't know if it's Qt or PyQt (but qt i think because PyQt is just a layer on top of Qt)

And why not every time... it's because the event is "Key press" and then the action is done and the key release is after. And some time, when the page is heavy, the action can take a long time (not all the rendering in Webkit, but it can be long to load an big article), so for Qt, the time between key press and key release is too long, so it's "long press" and then all the weird stuff.
I tried in a blank qtwebkit and it's the same thing if you make a long press on any key.