Graphics card going?

I've been having this problem lately, mostly when I run Firefox (Newest Beta which probably would explain the use of about 200,000, right now 285,000 memory. and FL Studio (Digital Audio Workstation) at the same time. Then again I haven't really experienced it without both those running but I've been doing this forever and this just started happening.
But anyway, after some time I will get like a copy of what firefox looks like, shrunk down to fit into the little half inch space in the taskbar.
Running Windows 7 with some unknown Copper Tube graphics card ? (Computer was built by my cousin I just traded an iPod for it a long time ago )
AMD Athlon 64 X2 3800 + OC'd to 2.54 GHz.
Now that I think of it, could it be the OC? I had it sitting around 2.50 GHz I just raised it again.
Which would also explain why my cpu fan loves to speed up when I'm decompressing a Rar O.O.
The fan part I dont really care about, it's just that other problem.
So would be graphics card be going? O.o

Thanks to whoever can help!

Edited by fifteenjr, 24 February 2011 - 10:36 AM.

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.

Publish a Snapshot using Speccy

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Here is the speccy link:
http://speccy.piriform.com/results/T9wXcLDVaHvpOeSTFOfQ7eV

Your video card is an ATI X800, have you downloaded the latest drivers?

The latest available, they were some legacy drivers since I guess it was old.

Your hardware is not compatible with Windows 7, as they do not make drivers for your video card.

Darn, okay.
Do you have anyy preferences on a good video card that would work with my specs? I don't do much gaming, but when I do I love quality.
I heard certain computers can't take certain cards but I'm not sure.
Maybe one with a DVI out since my monitor has a input for it?

What is your budget and power supply?

At most I'd probably want to spend is 70-100. Eh I probably want to get a better power supply as well this thing is loud, so I'll let you decide ;).
So probably in all, at most Id want to spend for a graphics and power supply is 125 - 150. But money aside, I just want to be able to do what I want it to do without much problem.
Since much gaming isn't needed, I mostly use this for music production I don't think I'll need a gaming type graphics card, just something that'll do the job.

SAPPHIRE 100287VGAL Radeon HD 5670 (Redwood) 512MB 128-bit DDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card - 79.99.

What kind of power supply do you have now?

This is what I have right now:
http://www.compubees.com/logisys-ps550a-bk-550w-dual-fan-switching-power-supply_369_14045.html
I'm using 24 pins going into my motherboard for the 20/24 part of that.

That graphics card is perfect thanks!

Edited by fifteenjr, 24 February 2011 - 03:51 PM.

That should be fine for the card I selected.

Alright thank you!