...from my home pc
My work computer and my dads laptop will login fine but my own one wont. It is probably some stupid box that needs unchecking or something but 4 hours last night and i couldnt sort it
When i log in it just goes back to the home page without being logged in.

Have you tried clearing your tempory internet files? Worth a try. Are the other computers using the same ISP?

Rich

Yep cleared all cookies and temp files, scanned with avg. I tried to scan with ad-aware but when i do that the computer restarts

Mebbe your wife has added it to the blocked sites and done a runner with the password!
(Speaking only from personal experience here- when "a few spare parts" turned into a car and a motorbike and the spare parts )

Not married