When you uninstalled the driver, the driver is gone. We need to retrieve the actual driver from the internet or if you have a disk for the driver.
Basically, right now you have a generic driver, which is why your screen looks weird. Once we get the actual software installed, it will be fine and ready to go!
Here is the download link for the driver you need!
Make sure this gets installed on the troubled PC. After the install, restart your computer, then please tell me the results.