I can't install my video card driver?

It started with that my screen looked all messed up. I have a dell so when I restart the dell logo have white lines all over the screen.
problem is when i try to install the driver, my computer crashes halfway thru the installation and then I get a blue screen 'PAGE_FAULT_IN_NONPAGED_AREA'

When I format my computer weird letters and symbols shows up
example:

Window XP Professional Setup
ø____øøøø____øøøø__ø__ø_ (suppose to be straight lines)

PresS enteR to contiNuE

and also there is like blue/red/green lines pops up on my screen
i have to change my color quality to 16 bit cause it gets nasty at 32bit

Pc spec
Dell Dimension E521
Window media center editon SP2 (But it says I have window xp pro for some reason)
Processor: AMD Athlon 64 processor 3200+ 2.0ghz
Video card: Geforce 7300 LE
Ram: 4g

Can anyone help? This is very frustrating!

Thanks

 

First step: Can you test the monitor on another computer? Can you test the computer with another monitor?

Do you have an add-on video card or do you have on-board video?

 

Yeah I tested it on another monitor and it wasn't it