Monitor/TV display shows 'ripple like' effect...

[boathouse]

I've been using BSPlayer for a long time with an NVidia Ti500 video card without any problems, but have recently swapped to an ATI Radeon adapter.

When watching a movie on the TV (or monitor) I can now see an unusual effect. During a fast panning of the camera I can see something like a ripple effect. The top half of the display will seems slightly behind the bottom half.

Has anyone had a similar experience and can maybe suggest some config changes that might help?

I've tried playing movies with WinDVD and don't get this problem, but I'd much rather use BSPlayer!