Hello all- I have a 1.33ghz 17" G4 Powerbook with 2gigs of RAM. I've been dealing with a black screen that requires a hard (button) shutdown if the grey screen does not appear. This started with the 10.5.6 update. Sometimes it takes several attempts to get a lit screen, and after that all is well. However after installing the 10.5.7 update, which took about 30 mins and a double restart, It now takes upwards of 30 minutes to get to a login window from the grey screen with the gear?? Any thoughts on this. Should I get the disc out and just update only to 10.5.6? Thanks!