AVi file flipped upside down when using "Extend picture

[JvT]

A little info:
BS Player Free v. 2.27 build 959 (27 feb. 2008)
Core2 duo CPU
Nvidia 7900GT (driver vers. 169.21)
29" CRT TV connected with S-vhs cable.
Windows XP SP2

I've set "Extend picture to 4:3" so that 16:9 movies are shown correct on my TV. That works great and all!

I have some avi files taken on my digital camera.
When I play them, they are shown upside down and only shown on my computer monitor. If i set "Extend picture to No Change" the avi files from my camera are shown correct on my computer monitor. Still not shown on my tv.

If I play the avi files from my camera in other movie viewers there's no problem.

I need "Extend picture to 4:3" functionality and to watch my digicam recordings correct (not upside down) without needing to alter the "Extend picture..." function.
What do I do?