Hi,
I have a problem with one of my laptops and I have no idea what is wrong.
This is how it started:

Booted up one day, everything was working, then it freezes. Thought it's my fan giving up so I went to BIOS, left it running to see if it freezes there. It didn't freeze at all. So I rebooted, it starts working again, then all the sudden keyboard and mouse stops working. I have a USB mouse so I plugged that in and mouse works again but keyboard still dead so I give up for the day.

Next day I turned it on, 1st time: the thing froze right before the desktop loads up, 2nd reboot: everything loads up but kb and mouse doesn't work, unless I use the USB mouse, and everything is extremely slow. I reboot again and went to BIOS again and my kb works there. So I thought maybe software problem with windows. I let it get back to desktop and I reformatted. Now I have a reformatted laptop but kb and mouse still not working.

Any ideas? Any replies would really be appreciated.
Thanks.