Think this is a Video Card problem?

My system is this:

XP Pro SP3

EVGA GT7950 512 Video card

Acer Al2051W monitor

GIGABYTE GA-MA785GM-US2H AM3/AM2+/AM2 AMD 785G HDMI Micro ATX AMD Motherboard - Retail
Item #: N82E16813128394

AMD Athlon II X2 250 Regor 3.0GHz Socket AM3 65W Dual-Core Processor Model ADX250OCGQBOX - Retail
Item #: N82E16819103681

CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model TWIN2X2048-6400C4 - Retail

2 Western Digital Caviar GP WD5000AACS 500GB 5400 to 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Item #: N82E16822136149

Antec BP550 Plus 550W Continuous Power ATX12V V2.2 Modular Active PFC Power Supply - Retail
Item #: N82E16817371016


I use my system mainly for playing SWG and web surfing with a little MS office thrown in once in awhile.

Started a few weeks ago, would be playing SWG and then the screen would go to <no signal> then black like the system would hang. Fixed it by hitting the reboot button, then it got to the point I'd have to hard reboot the system to clear it and then finally the system would not show anything on the monitor at all.

Fixed it by switching to the analog side of the monitor and using an adapter on cable to connect to the video card. This worked for a few days until now I cannot play the game at all without the screen going to <no signal> then black.

I ran a monitor test program<passmark monitor test program) thru it and it worked fine.

When I tried to run <video card stability test> or <3d Mark> thru it the system does the exact same thing, plays for a few seconds then straight to <no signal> black screen that can only be corrected by manually rebooting the system. I can do light web surfing etc with the system but nothing more.

I'm thinking the video card is almost dead, anyone else agree?

Can anyone suggest nice replacement for it in the $150.00 range?