hi guy. hey, i bombed hard for days w/ ccc, even 8.1 bombed 4 me. finally, i hassled techies enuf 2 get instructions. basically, u gotta go into the registry, and find anything that refers 2 ati, and delete it, so ati is not known in your registry (usu u find stuff from prev installs.) then, u gotta go and lookup .inf files, they would be ones w/ a second part 2 match the .inf itself, and delete any of them that refer 2 ati. 4 me, there were about 20 .inf files 2 consider, i only nuked 3. sorry, but if this doesn't work, run this by ati support, and they'll tell u about the same thing, but super direct/accurate(er) than me. ps/ i am gonna bomb & drop ati, like a hot potatoe, as soon as displayport comes around. now i've oc'd my rig, and ccc loses altogether its host processor, so i can even look at my gpu temp (that's all i use ccc 4 anyway. adios, cooky.