[Sasquatch]

i have a problem with my computer, im getting a new one but i need this one for other reasons, the main problem is that it shuts itself off 85% of the time before it gets to the profile page, and all i see down the page is 4 broken lines and inch apart spanning the screen. also when starting up i get a shed load of these things going accross the screen " " " " " from top to bottom, just to let everyone know here are the specs for the computer: (what i know anyway)
pentium 4
768 Mb ram
120gb hard drive
Nvidia geforce grafics card (cant remember the number) but i dont think its certified.
cant think of the speed thingy...
i know this may not help but if i can get some advice on what to do or how to fix it, your comments would be greatly appreciated.. thanks guys...

[SocialWarfare]

Can you start in safe-mode by pressing F8 repeatedly at start-up

[Dave Hybrid]

Open the case, clean the fans.

[Sasquatch]

yes, what can i do from there, still get the lines spanning the page.

[Sasquatch]

should i use compressed air or just blow the shit out of it?

[SocialWarfare]

If you have compressed air then yes, or like you said just blow it until its clean

[kanoakavirus]

Have you made any hardware changes lately like installing anything ? Also have you run the usual scans for virus's and malware?

[Dave Hybrid]

Or use a paint brush. Make sure the fans are 100% clean.

Dust is almost always the cause of a restarting/freezing PC.

[Sasquatch]

ill give the blowin thing a go, the only thing i put in was the graphics card. and i installed all the drivers and stuff, ran scans the whole lot. nothing found. the graphics card wasnt certified though could that be a problem?

[SocialWarfare]

What do you mean its not certified?
That the drivers you used aren't or something?
What type of card is it?

[kanoakavirus]

Do you have a spare g card or machine to do some tests if you have your old card then try that if its fine then its your new g card and try your recently installed card in another machine to see if the same happens. But as Dave said a good clean wouldn't go a miss dust can cause shorts on the mobo.

[Sasquatch]

no, me sis threw out me old one, was ragin over that, but i tried the compressed air still doesnt work, i think i just need a new computer, any ideas on where i can get a reasonable one for about 500 euro? has to be used for 3D applications like 3DsMax and stuff, im lookin for one witha duel core proccessor about 2g of ram and any size of a hard drive. even just the tower i can get monitors and stuff myself

[Sasquatch]

i just noticed there was a few spellin mistakes in there, im only up :D