i run xp on 3 computers side by side, i still play some old dos games including, empire deluxe, kingmaker, colonization, and several others. this is my prime computer i'm not sure why but games i could play previously.. including the above games i cannot play now.. i get a black screen. the mouse seems to cause ripples in this black screen when i move it.. so it seems to be a display problem. one of the other computers here is newer, runs same OS (xp up to date sp) yet it can play the games without the black screen. I found your problem looking for the solution to mine. I'm about to check my monitor resolution to see if it's minimum includes the resolution of the old dos games.. as well as check the minimum resolution on the monitor(pc) that is currently able to play these games. my worst fear is i have disabled my more oft used computers from dos games by doing windoes update. this is my last windows pc.. i'm going to apple rather than use vista, but thats another issue. i posted here because thes e dos games are running under one xp computer, but not another. i think the problem is the display.. or its a windows upgrade. this display min res is 800x600, mabye that's why i cant play the dos games if their res is lower? well the computer that can run the dos programs has the same minimum resolution.. now i think it's a windows problem.. i must have updated dos compatability right off my computer. this is the future of windows, google whats wrong with windows vista to read some nightmareish vision of the microsoft future. vote with your feet now and get an apple.