hi, i recently loaded a couple of games in my pc. Whenever i try to start each game an error msg appears that graphics accelerator is not present. what is graphic accelerator and how do i install it. Thank you

I Googled that. A few results: http://www.intel.com/products/chips... http://en.wikipedia.org/wiki/Graphi... http://www.brothersoft.com/download... If those don't help, there are over 341,000 more links. "So won’t you give this man his wings What a shame To have to beg you to see We’re not all the same What a shame" - Shinedown

The motherboard used in your HP Media Center m7067c is based on the Intel 915GV chipset. The graphics are Intel® Graphics Media Accelerator (GMA) 900, aka GMA900. It's an extremely weak/low end integrated graphics solution that isn't capable of running most games. What you're going to have to do is install an actual video card. Here are the specs to your motherboard: http://h10025.www1.hp.com/ewfrf/wc/... It has standard PCI slots only - no AGP, no PCI-express - so that means your gaming video card choices will be extremely limited. It would help to know which games you're trying to play & how much you'd be willing to spend for a video card upgrade. I suggest you look for a card with 256MB memory @ 128-bit & supports DX9. Don't get suckered in by 512MB cards & try to avoid cards that use 64-bit memory. 128-bit is a selling point so it will generally be listed in the product description, if nothing is stated, the card most likely uses 64-bit memory. Here's an "open box" Geforce FX5200 256MB 128-bit PCI card for $30 + shipping: http://www.newegg.com/Product/Produ... I also found this Geforce FX5500 256MB 128-bit PCI card on eBay for $30 + $10 shipping: http://cgi.ebay.com/nVIDIA-GeForce-... The FX5500 is better than the FX5200. I suggest you check the minimum system requirements for your game(s)...it should be printed on the box.

whats wrong with 512mb pci graphics card???

"whats wrong with 512mb pci graphics card???" Don't confuse standard PCI with PCI-Express, they're two entirely different things. The standard PCI bus runs at 33MHz & has a max bandwidth of just 133MB/sec. Plus it's a shared parallel bus meaning that ALL PCI devices take a bite out of that bandwidth. Because of the slow bus speed & limited bandwidth, it's impossible for a PCI card to take advantage of 512MB memory. Stick with 256MB as the max. PCI-Express 1.0/1.1 runs at 100MHz & has a max bandwidth of 256MB/sec. It's a serial bus, not parallel. PCI-Express 2.0 doubles the available bandwidth to 512MB/sec.