shuttle x
512 ddr 333
120gb hd
geforce4 mx intergrated
tv out intergrated

I can get xp to display onto my television but when I try to play a DVD using Powerdvd it shows a blank screen.If I play powerdvd in a smaller size so that I can still see windows xp around the edge of the screen ,the dvd is still blank , while on my pc the dvd is playing normally( I can see it playing). The same happens if I play divx or vcd using zoomplayer and output it to the television.

Thanks in advance.