Seems that every time I get the automatic windows updates that need to be installed, my screen resolution changes after I do the install and my computer reboots. When I go to the control panel, it's only showing me 800X600 or something like that. Before I could disconnect the monitor from the computer, and when I reconnected it, it would resolve the issue, but that's not working now. Any ideas why this might be happening?
Seems like maybe it keeps trying to update your video card driver and failing? Go to your PC or video card makers website and get the very latest driver, see if that fixes the issue. You can open Windows Update and look at the history to see if it's trying to install a driver as well.
Interpretation of the file extension is on the client side and should generally be case insensitive. Bear in mind that file extensions go all the way back to the DOS days and that DOS was an entirely case-insensitive operating system.