ok i have a problem...when i turn on my computer.. windows starts doing it's little thing ..well it comes to a screen where it asks if i want to start in safe mode, safe mode with networking, safe mode with cmd prompt, or normal mode..well when i choose one, it goes on to the screen where the little blue bar is going across that little tube thingy...well it just stays on that page and it won't ever open to windows.. i've tried alot of stuff...but can't figure anything out..