i installed the 4in1 4.55's and their not located in my add/remove programs. the 4.56's are out, but i always uninstall old drivers be4 installing new ones. when i installed the 4.51's that came with the cd they showed up in my add/remove programs and were able to uninstall. maybe i'm missing something? i'm used to nvidia chipset and are easy to uninstall. help? thx.