whats up everyone this is my first post that i post up and it just so happens iam posting a problem i have. i have a hp pavillion slimline 5000 mini desktop that was given to me because it stop working. after doing a heavy cleaning inside out and getting rid of all the roaches from there apartment i found out the power supply and harddrive dont work. after replacing the two parts and giving it a new case she turns on. i mean the motherbroad turns on as well as the new hardrive and the dvd rom puls the fans turn on as well. the only promblem is that i dont get nothing on the computer screen. i allready checked the jumpers and the ram as well. could someone give me any suggestions or advice on how to make it work please (sorry for post being so long) thanks heres my computer info hp pavillon slimline 5000 mini desktop motherbroad MZN68-LA cpu AMD sempron with 3 gigs of ram .