[J92273]

I'm running Windows XP on a Dell Inspirion 7500 laptop and installed a new mouse driver for an external mouse. After rebooting to have the settings saved, the external mouse, the mouse pad, and the keyboard no longer work. I tried to reboot in safe mode, but still nothing works. I can't get into my computer and I don't want to have to reinstall the operating system. I don't know what to do! If anyone can help, I'd appreciate it.

Thanks, J9