Try booting in Safe Mode or Safe Mode with networking support if you have broadband. There is no reason for the monitor to go blank unless you have cable or driver issues affecting it or the display card. Ignore the "patch" issue for now.
To boot in Safe Mode tap the f8 key early in the boot process and choose from the options.
You can also try clean booting -- providing you can boot to the desktop in Safe Mode.
and select the "Services" tab. Check "Hide Microsoft Services"
and then disable the rest. Also uncheck "load startup group" on the general page.
See this link for detailed information:
Now restart and test the issue at hand
If no problems, run msconfig
and recheck half the disabled items on the Services tab. Test again. If the problem recurs, UNcheck half the items you just checked to narrow down the culprit.
If the problem didn't occur, check the other half, so all the Services are enabled -- proceed to do this on the startup tab as well.
Get the idea? You want to isolate the problem to a specific startup if possible.
Note: if you already have items unchecked under msconfig > startups and are in "selective" startup mode - you should note what these are before beginning. They will need to be de-selected again.