I checked the connection and tried it in 2 other USB ports and had the same problem so i uninstalled the drivers and rebooted but this didn't solve the problem.
So next i took out the mouse thinking it must be broke (even though it's only a few months old) and put in an old mouse with a serial connection only to find that this is having almost the same issue also. The difference is this one doesn't think it's left button is in-pressed always. It acts normally then randomly every few seconds it acts like it's just been clicked.
I did a virus scan and found one, got rid of it but this didn't help the problem (and I've no guarantee this virus was even related to the mouse problem) and i did a system restore. NOTHING HAS WORKED.
My biggest annoyance is i literally don't know what could be causing this. I use my computer daily to earn a living so please someone help as i need to fix this ASAP!