Copied this from http://nextl3vel.net/articles.php?action=show&showarticle=20 and it DOES work (I just edited it a bit)... I just tried it out! You MUST install Virtual Machine Additions! (You know what, I'm not even sure anymore... Just install it to be safe! If you don't install it and it works, please let me know!) 1. Right-click on the desktop and click Properties. 2. Click the “Settings” tab. 3. Click the “Advanced” button. 4. In the “Default Monitor on Standard VGA Adapter” window, click the “Adapter” tab. 5. Click “Properties”. 6. In the “Standard VGA Adapter” window, click the “Driver” tab. 7. Click “Update Driver” 8. In the “Hardware Update Wizard” window, select “Install from a list or specific location (Advanced)”, and press the Next button. 9. Click “Don’t Search. I will choose the driver to install”, and press the Next button. 10. Uncheck “Show Compatible Hardware”. 11. To the Left, select “%S3%” (something that has S3 in it) 12. On the right, choose the driver labeled “S3 ProSavageDDR 8D04 (Microsoft Corporation)”. 13. Click OK and ignore any warning messages that may appear. 14. Once Windows has told you that the driver has been installed, restart the Virtual PC by going to Start, Turn off Computer, and then clicking Restart. 15. Once the Virtual PC is restarted, you should have full color in Longhorn under Virtual PC. You may now logon and customize the resolution. Good luck!