I have a small computer with our work database on it. We are trying to have some people work remotely, but have access to our work files. The administrator and a couple other logins work fine, but some, when I log in have a black screen. I have searched the KB, and most of the suggestions are to reboot the host computer (which I have) but also driver or hardware issues, which seem irrelevant, based on the fact that some of my log ins work. Any thoughts on this one?