Originally posted by krusade99:
Opera might create a new autosave.win if I move the file, but it still uses the one in the Windows folder
Now this would be completely incomprehensible and - if true - would mean that Opera saves sessions automatically into 2 different locations. If by "uses the one in the Windows folder" you mean that upon startup your Linux Opera opens the last tabs you had open in Windows, well this is is relatively easy. Probably this is what you did:
1) Preferences > General > Startup > "Continue saved session"
2) opera:config > User Prefs > Windows Storage File > ""path/to/Opera Windows/sessions/autosave.win"
Thanks for your answer, GwenDragon. This setting doesn't seem to have anything to do with it, hardware acceleration is already disabled in Opera.
There's still the hardware acceleration setting in flash but, as I said, I do not want to remove such an important feature globally to solve an issue that only happens in Opera.