First of all i have already solved the problem, but i want to start this thread to ask if you guys can vouch for my solution or if i am crazy ?
I upgraded my PC and did a fresh install of windows 7 ultimate.
after some use, my PC would not restart or boot up correctly.
i had to repair windows with my disc to boot up.
i couldnt even "repair" windows with out my CD.
i stumbled across the solution by accident.
or at least i think it is the solution.
i unplugged my USB mouse (Storm Sentinel) from the usb port from my Dell monitor (U2711).
and i plugged my USB mouse into a port in the back of my motherboard.
and now my windows starts up correctly.
what is going on here ?
is there a rule where you have to plug in your mouse to the motherboard to boot up correctly ?
BTW the way i figured out it was my mouse/USB causing the problem was the following...
when i would insert my windows CD to repair.
it wouldnt let me boot from my windows CD if i didnt have the mouse plugged into the back of my motherboard.
unfortunately it took me weeks to figure this out...lol.
i was scared to turn off or restart my PC !
but i usually dont restart or turn off my PC anyways, when not in use.
That's strange but not unheard of with mice. Keyboards, also, or at least bad keyboards, will sometimes prevent a computer from booting-up also (sometimes it is a stuck key or sometimes just plain bad keyboard).
I would check to make sure that you are running the latest bios for your motherboard, mouse, and Dell monitor drivers.