Connecting ATI ALL in Wonder with DVI to HDTV

[lurch2012]

I am attempting to use my DVI output/input with my phillips 30" hdtv....It is not a flat panel, and the resolution is overscanned (much too large for the picture size)...I can't seem to use my aspect ratio controls when the tv is in DVI mode...I also can't seem to change it with the ATI control panel...
I ahve the ALL in wonder 9800 pro...any suggestions would be greatly appreciated...