I restarted my computer earlier this afternoon and after the windows loading screen it just went to a blank black screen and didn't move on to the log-in. I tried restarting multiple times and it just keeps doing the same thing. I've tried using the Windows CD to boot on but when I use the CD to boot it just comes up with weird special characters every time. A couple times it's come up and said "NTLDR is corrupt, cannot boot" or things along those lines. I even tried replacing my 2 IDE harddrives with a new SATA harddrive and tried booting on the CD but it still came up with the same things. Can anyone tell me what might be going wrong?

Oh and sometimes when booting with the harddrive a blue screen will come up briefly, not long enough for me to read anything that it says on it, and then the computer automatically restarts and repeats.

bump