Some background info: I installed a new video card (HD5770) for a system that has not been used since April 2009. The install went smoothly with no real issues. Due to the long period of non-use, I cleaned the system up by uninstalling about 10+ programs then rebooting. Most of those uninstalled programs were games, but I did uninstall Quicktime, Adobe Flash Player, NVIDIA display drivers, and Logitech G15 GamePanel Software. Upon reboot, I no longer had either mouse or keyboard support in Windows (Normal). I am using a PS2 keyboard and a USB mouse (although I have also tried a PS2 mouse). I am able to still use the keyboard at POST to enter Windows Boot Menu and then Safe Mode but have no keyboard or mouse support in Safe Mode. As such, I am unable to troubleshoot the issue within Windows. Please help!