Well,

Thank you all so much for your advice. i have actualy tried another mouse and it is not that. Will definately try and search on ggogle to change the bios. Have actualy had a play around with the bios to no avail. reckon it must just be faulty hardware.

Anyway, y do u have to be so cocky in your answers?

im a normal person asking a normalo question, u 2 have to be rude in your answers and basicaly take the piss.

if this is all the help you can give, dont bother!