Cant Adjust screen resolution!!

i have a sony vaio computer with a compaq screen. the computer had alot of issues and i lost the original backup cd to restore it so i tried a friends backup cd and it worked. they have a gateway computer so i dont know how it was possible? anyway the screen looked horribe so i tried to adjust the resolution and the slider wont budge at all!! its stuck at 640x480. someone please help me out!! oh and heres the specs:

file:///C:/Program%20Files/Belarc/Ad...452bb4e1).html

Welcome to DAL;
We can't see that link you posted as it's stored on your hard drive. However, try to find out what sort of graphics card you have, this will be written somewhere in the same dialog that you change the resolution in. Then we can try and find some drivers for it, and hopefully fix it.

Operating System: Windows XP Media Center Edition Service Pack 2 (build 2600)

Processor a: 2.55 gigahertz Intel Pentium 4
8 kilobyte primary memory cache
512 kilobyte secondary memory cache

Drives: 120.02 Gigabytes Usable Hard Drive Capacity
97.52 Gigabytes Hard Drive Free Space

ASUS CD-S400/A [CD-ROM drive]
PIONEER DVD-RW DVR-104 [CD-ROM drive]
3.5" format removeable media [Floppy drive]

ST3120023A [Hard drive] (120.03 GB) -- drive 0, s/n 3KA1YCC9, rev 3.33, SMART Status: Healthy

System Model: No details available

Main Circuit Board b: No details available

Memory Modules c,d: 504 Megabytes Installed Memory

Local Drive Volumes: c: (NTFS on drive 0) 120.02 GB 97.52 GB free

Network Drives: None detected

Controllers: Standard floppy disk controller
Intel(R) 82801DB Ultra ATA Storage Controller - 24CB
Primary IDE Channel [Controller]
Secondary IDE Channel [Controller]

Display: None detected





i dont see where it says video card...

right click on your desktop, go to properties, then the Settings tab, and there is a line that reads;

Display:
*monitor name* on *graphics card*

For me it's

Plug 'n' play monitor on Nvidia Geforce 7300GT

It's the last part you want, should give you the manufacturer.

it says

Display:
(Default Monitor) on

Insert your exact VAIO model into Sony Support and look for XP Video drivers.

i downloaded everything for my computer and i tried to install it but my computer is still the same what do i do??

+bump+

hmm.....

Try;
http://www.softhypermarket.com/ResCh...oad_23474.html
It could just be windows being stingy