hi, i have a compaq presario 2500. i got a problem in my system. my system auto tabs itself cause of which i cannot do nything.whenever my system starts, after the booting screen it goes into battery callibration mode.from there i have to press s(option to skip callibration) many times to get to the windows logon page. after i login the tab function works automatically, i mean the pointer keeps moving on the icons of the desktop automatically(open a page and press the tab button and hold it for a few seconds or minutes and see the curser moving from up to down like tht i mean to say) and i need to press the tab button to stop it. . i have tried formating system but nothing happened and i have even calibrated my battery. plz help me out.
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