I just always hit the button any time I opened the Mac to add or subtract anything. I did push the > CUDA button when I installed > a G4/450 card in my 7600/132. Is there some reason I > should have? PTL David M. DeFelice Jesus Christ is Lord .....! MI-MAC ROCKS ;o) ... G4, 733MHz, 80GBHD, 1.5GB Ram, Lacie DVD+RW 16x4x16, Radeon 9200 128MB, Maxtor 40GB Firewire, Mercury 80GB Firewire, 21" RastorOps SuperScan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com