So I finally got my desktop tower set up, and everything's working. It boots up, it shows the boot screen so that I can pick between going into Ubuntu mode or going into Windows mode, and I've got a working mouse and keyboard. The problem is when I try and go into Windows mode. I can access the option from the boot screen just fine, now, but once I get there...all I'm getting is a black screen. If I wait for several minutes, it progresses to a black screen with a mouse pointer. Control alt delete does nothing, escape does nothing. Details: the monitor I'm using is an old TV my sister left behind when she moved. I've got three cables plugged in right now: a VGA cable; a DVI-to-HDMI cable (plugged into HDMI 1 on the TV); and a plain HDMI cable (plugged into HDMI 2). The VGA input channel gets me the black screen I mentioned. HDMI 1 produces an "unsupported input" error message. HDMI 2 (and all other channels) produces a "no input" error message. I don't know where to start googling to figure out how to fix this. I do know that I do need the DVI-to-HDMI cable in order to get to the boot screen at all; it was skipping past the boot screen, prior to that, and just going straight to the Ubuntu login screen.