Originally Posted by PeteC2
OK, then next question, have you tried F-11 to do a full recovery?
those models DO NOT have a recovery partition. it has to be done with cds/dvds.
back to subject....
when you get the hp logo on the screen, hit the Escape key just once and you will see the POST screen. there it will display if the hard drive is being detected by the unit.
try booting into safe mode. right after the HP logo, start hitting F8 and then you will get a black screen with white text and there you will see the option to boot into SAFE MODE. if it boots into safe mode, i would start with uninstalling the video adapter driver.
if it doesn't boot, i would next move onto the ram. see if there is non-HP ram in the unit. sometimes people buy upgrades but its not compatible with the unit and will cause issues like this and other ones as well. hp ram will have a white sticker with a HP part number on it that will have only numbers and look something like this: ######-001
do these steps and let me know whats up, then we can try other things if this doesnt help. good luck!