For all those with ATI cards and are having problems, all you have to do is d/l the new 1.01 patch from
http://sumo-digital.com/patches/VT3_patch_300307.exe and install it then go to
here to d/l the new 'Virtua Tennis 3 v1.01 [MULTI5] No-DVD/Fixed EXE' crack and all ur problems should disappear.