Thanks for your reply, much appreciated, we think a like , i thought the same about a loose screw myself but no such luck.

I also googled for an answer too but got a lot of talking but no real answers, i heard its apparently something that a business might do to their computors, so their staff can't go sneaking inside their PC's, mean people around but still their should be a jack on the board to unlock the default, or in BIOS somewere , you would imaging.

I have a mate that is a PC pro, but can't get in contact with him at the moment., anyway i will make a couple of phone calls and might be lucky if i get someone that doesn't say, " you will have to bring into the shop " $$$$$.
thanks anyway.
Brian