I'll first tell a bit more of my mac configuration: a PowerMac G4 (Dual 450) with an AGP Radeon 9000 graphics card installed. The Radeon has 2 digital connectors (one ADC and one DVI). My Cinema 20" Display is connected to the ADC output. So no problems here (already running like that for months) But now I hooked up my old 15" Sony TFT to my PM (I used the supplied DVI to analog converter). Still no problems, nice to have both screens working! PROBLEM: But when I want to put my mac to sleep I can hear the hard drive and fans go sleeping and both screens get dark. But then suddenly (after 1-2 seconds) my mac awakes again! So I thought I'll shutdown my mac, all programs quit and the system shuts down, but then the same thing happens. My mac automatically reboots! So now I always have to disconnect the old screen before I can put my system to sleep or shut it down Does anyone have a solution for this problem? I already deleted the "com.apple.PowerManagement.xml" from my system library but still the same... Hope anyone can help me!