Hi ive got the same problem on mine bought this the same model off ebay not knowing there where a superviser pasword on the laptop ive checked various forums and theres several jumpers try shortining certain jumpers with flat headed screw driver battery out without memory memory installed i seem to think this is on the eeprom chip i come to think that it is read only and cant be reset like all old methods hirens boot remove cmos battery etc if i find a solution i will let u know but if anyone has a solution that would be great than