So I've had this problem when I've tried to play Daggerfall, and this problem occurs with any game that uses DOSbox. When I start up Daggerfall my monitor goes out, and it acts as if it isn't hooked up to my computer. It detects no signal. I've had this problem for awhile, but I haven't tried asking for help. I don't think there's any need for me to go into more detail than what I have.