Keyboard and mouse frozen on acer aspire 5100

Hello,



My keyboard won't work xcept to start up, then I end up with the pointer in the middle of the screen and it wont move or will any keys work except the power button. I have tried pushing Fn + F7 and also F2 during start and it will not start in command or safe mode. I have also pulled the battery numerous times to no avail and pressed every button available during start. This problem was fixed once before but the guy never told me what he did to fix it, he did not refromat it tho so I think it may have been a simple fix. Does anyone have any ideas?

Thanks