Xvid movie upside down and errors messages

[joebijoba]

Here is what I get with BSPlayer :
- Error message 1 : Overlay failed
- Error message 2 : Display harware is not capable of color-space conversions. Switching to RGB
- The Xvid movies play upside down (but not other format, eg : DivX)

I tried with "Force RGB mode" so the errors message don't appear but it's not satisfying because :
- Xvid movies still play upside down
- When the image is resized (fullscreen or window mode) the playback is very jerky (lots of lost dropped frames) and the image is very blocky (no smoothing)

I know it's not a hardware problem because my other notebook plays perfectly (exact same hardware and same Windows 2000 os). And I remember not having this pb a few weks ago. I guess it must be a software/driver/config pb but I can't figure out what exactly changed on this notebook.