Hi all, I just upgraded from a G4 400 to a MDD 1.25 with Leopard 10.5.8 on a new 120G HD. I upped the RAM to 2 gig, then connected an external Firewire HD and turned on Time machine. Now, when I boot or restart I get 3.5 mins of dark screen with the monitor standby light on, then another 1.5 mins of grey screen before the blue desktop. I tried reinstalling the original 1 gig ram, disconnecting the external HD, and turning off TM, but still the same. While I am staring at a blank screen I can't hear any HD reading noises - they start when it begins to boot. Once started the machine is great (although noise from the PSU fans is a PITA) and so much quicker than the old one. Last time I had slow boot problems the cause was a failing HD, but this one is new. No disks came with the machine. I have run Disk Utility and found no problems. Please can anyone help?