Hi i need some help before dell sends me the 4th new laptop in 3 months. I got a 1550 dell laptop with vista december 08 in june 09 i got my HP photoshop C5580 all in one shortly after my hard drive went dell sends a new hard drive everything is ok a week later i install my hp printer and blue tooth 2 weeks after that the hard drive and mother board crash dell sends a tech out to fix it, still not right so dell takes it back and sends a 1655 with vista, this one works great for 2 1/2 weeks with no hp software in it, i install it, a week later i try to power on the laptop and windows loads and loads and loads power it down and back on, it does nothing but make this wierd buzzing noise, dell sends a new 1655 with vista, it works great with no hp software for 3 weeks 1 1/2 weeks after i still it, windows didn't want to start then did, the next night windows wouldn't start, system tests told me at first operating system had a corrupt file, so i put in the vista disc trying to fix it that way, that freezes at 75% then it tells me imment hard drive failure and no operating system found. They are sending another one, this time they said top laptop gaming system with windows 7, i'm happy for this. I need to figure out what is going on though, the hp printer is the only thing that matches up, other then that these are brand new laptop after new laptop crashing because i know i don't do anything else on them no downloading or anything like that, I get no error messages prior to this accuring or anything, I have secure internet and virus scanning. Please help