Mac Mini won't boot - displays white screen

I just bought a new mini, core duo, and set it up today. Everything was working fine, and I followed the instructions to update 9 applications from Apple.
I also installed a wireless keyboard/mouse MS Desktop 1000.
Everything worked great until the reboot. Now the fan turns on, the power light turns on, the startup chime sounds, but the display is only white. It doesn't appear to be doing anything.
I've tried restarting several times, I've disconnected everything (well, not much to disconnect, display, usb, power)
Any ideas?

Try starting you mini in Safe Mode…
http://docs.info.apple.com/article.html?artnum=107393
… to see if you can get it to start. I think it might have been a bad software installation that's done it. More than likely it was the keyboard and mouse.
If you can get it to start the first thing I would do is to try and repair you disk permissions (Disk Utility in your Applications > Utilities folder).

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