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Yes its the SiS 661FX. its not a seperate card, its built in.
The PCI / AGP Video is listed as SiS 330 Mirage Integrated

I am confused because my brother has the same hardware and he is running a similar samsung 20" lcd without a problem.

So I could just upgrade my video card.
Which type would I need?
Any with a PCI card with a DVI out?

Thanks for all your help!

It depends what slots you have on the board. Assuming yours is a similar board, you should have an AGP port. So you could get an AGP card. Or a PCI card which is cheaper but won't be able to run very high quality games. But that doesn't matter if you're not going to be playing games on it.

Getting DVI out is worthwhile because cards with DVI out are cheap and about the same price if not lower than those with just VGA out.

Cheapest PCI card: Innovision GeForce FX5200 128mb DDR PCI Graphics Card - Ebuyer

Cheapest AGP card: Inno3D FX5200 256MB DDR DVI VGA TVO AGP Graphics Card - Ebuyer

Your brother's PC may not require drivers like yours or his onboard graphics might be slightly better than yours. I have not heard of monitors requiring their own drivers...have you tried seeing what happens if you don't install the monitor drivers? Does the display still look pixelated?

Thanks for explaining the differences. I had a look inside to check and yes there is an AGP port. I dont do any graphic heavy gaming so thats not an issue for me.

The monitor came with an installation cd with drivers. You can choose to install either the analogue driver or the digital one. I tried both but neither of them made any difference to the display. So i uninstall them.

I'll just get a cheap AGP card and use the DVI.

Thanks again

Also the digital drivers are for DVI cables, which should give you better picture quality and reduce or eliminate this problem with dodgy pixels.

Note that if you buy a graphics card, you will need to buy a DVI cable (DVI to DVI). They are quite cheap on Cheap Laptops, Hard Drives, LCD Monitors, TVs and more at Ebuyer.

Could you try the monitor on another PC before you buy a graphics card? Just to see if the problem reoccurs. Preferably a PC with a graphics card as opposed to online graphics. Although any other PC would give useful results.

You may also want to read the monitor box and/or manual and see if it mentions minimum requirements. For example, it might require a certain type or brand of video card with a certain amount of built in memory. It would just help verify that the problem is your graphics card and not the monitor. Although I'm quite sure its the onboard graphics.

Update:

I got an Nvidia GeForce FX 5500. And a DVI cable.

Problem with moving blurry pixels remains exactly the same.

Shall I send the monitor back?

To elaborate on the problem: The moving blurred pixels are not always in the same place on the screen, it depends on what is being displayed. This text that I am typing is perfect. But some of the details on the web browser are heavily blurred. My desktop image is heavily blurred too.

Also, with the analogue cable, the text on the boot up screen is perfect. With the digital it is heavily blurred and unreadable. The change to DVI cable has improved the overall quailty of the display but it has had no effect on correcting the moving blurs.

Have you tried changing the display resolution to something lower like 800x600?

Sounds like it could be a setting on the monitor or with the driver. Since you got a new card you should try uninstalling and reinstalling the Samsung drivers too and set it up for a digital display.

Sorry the new card idea didn't work...

Your problem sounds more like a driver incompatibility than an actual hardware fault. You should still contact Samsung and see what they recommend.

An example of a hardware fault would be dead pixels...which are pixels that don't change colour. eg you could have a pixel that is always red so even on a white background you would always see the red pixel.

Hi,
yeah just tried changing the resolution, its even worse on 800x600. I've reinstalled the samsung drivers, and again it makes no difference whether the drivers are installed or not.
im just about to take the monitor over to my brothers to try it on his setup.
i'll report back with the results.
thanks again!