No signal on monitor

As I write to some other question:
Run your system in 'Safe Mode'. Go to Display settings and set lowest possible resolution. Then restart computer and run windows again in normal mode. Should have normal screen. If this will not work - then under safe mode uninstall graphic card. Then run windows with standard ones and in LOWEST possible resolution install drivers again. I have had it many times and it made swear first time.

I had similar problem. I unplugged power cord to LCD, and re-plugged cord back. It solved the problem. Kind of cold-reset for LCD. I used DVI.

i have the answer .. and it works fine now. i installed a 500watt power supplie to my 2 pcs that had this problem and they are both running on start-up on the first attempt every time.

Mike.