I have tried on 2 pcs to slipstream sp1 into vista x64. on one pc...a phenom qudcore with 8gb of ram, the installation takes over 5 hours (so i cancel it). How mjany hours should it take? it says 1 - 2 hours but it seems to wanna take like 20.... on the other, a turion with 2gb ram, i get an error that no changes were saved.