Today when I came back to my home-office after going out for lunch, I noticed that my monitor had powered off. I wasn't too surprised as it's set to do so after 15 mins of activity, however I quickly noticed that it was not responding to its normal wake up calls (mouse activity, keyboard, etc.). Begrudgingly I force rebooted the Cube and waited to see what would happen. At first it appeared normal, I received the startup chime and the now-familiar gray Apple logo, however right after this the screen went black and the monitor reported a loss of signal.
So I force-rebooted again. This time the monitor was all out of sync, the red, green and blue being out of register and the screen was breaking up in several places. This went on for nearly fifteen seconds before the monitor lost its signal again and went black. Suspecting it was my monitor at fault (a brand new Sony 17" TFT) I swapped that out for a Sony 15" CRT and zapped my PRAM. Same issue with the other monitor.
I then tried booting from my Norton 7 CD, the Jagwire CD etc., etc. Same thing. Finally I disconnected all external devices (inc. monitor) and booted but it appeared to only get to the same exact point in the boot process before going silent. Does this sound like a dead video card or dying motherboard to anyone?
For reference I recently upgraded to a PowerLogix 1Ghz G4 and the video card is a 2 year old GF 2MX w/o fan (though the PL fan was installed). The only other anomaly is that I recently went away for three weeks and left the cube powered off. Upon coming home, both my internal drive and external firewire drives had major directory damage. I repaired both with Norton and things had been running okay. However prior to going to lunch Adobe GoLive would not launch (SPoD) and I foolishly left it endlessly launching while I was away hoping it would eventually come up. Other than this, things have been fairly peachy.
Can anyone offer any help? Trying to run a design shop on a 500mhz iBook is quickly becoming painful. I need my Cube back...
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