Rookie at building a PC here, everything has went good so far but now I'm stuck. Powered up the system, and put in the Windows XP disk. The disk loaded and everything went fine until I came to the screen that gave me the option of installing windows, quiting without installing, and one other option that I can't remember atm. Anyway for reasons that are too embarrasing to explain I opted to quit without installing windows. Now I have went back to finish the job and the computer boots up but stops at a point with only the cursor flashing on the screen. I can't even get a dos prompt. How can I get it to finish installing windows?