A thought just occurred: it could plausibly be related to hardware acceleration or video driver. Alexei, is there a difference between your two setups in terms of video drivers that might be related? Your comment about the fact that it is happening on one system but not the other -- but with the same software -- made me think of it.
Of course, this is all very likely a lower level bug than zim itself, but knowing the details would probably be useful should this pop up for other users.
A thought just occurred: it could plausibly be related to hardware acceleration or video driver. Alexei, is there a difference between your two setups in terms of video drivers that might be related? Your comment about the fact that it is happening on one system but not the other -- but with the same software -- made me think of it.
Of course, this is all very likely a lower level bug than zim itself, but knowing the details would probably be useful should this pop up for other users.
Evan 'JabberWokky' Edwards