I thought I was going to today, I have a 2 or 3 year old Compaq with a 16" screen and a half dollar sized black splotch in the upper left hand corner... I have my previous model that died (common ailment with that model) tore it apart, screens not the same (only 1 - 2 year difference in model)HDD half the size in the dead one & 2 - 512 k ddr memory (live one has 3 gbs) battery's shaped same but not compatible so struck out on all counts. probably be better to get a new one soon.