This echoes an un-answered thread I posted in the Microsoft "community"... +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ I was having problems with "running out of video memory" errors in the Aces High online flight sim, so I did a full wipe-and-reinstall of my system. I deleted all the hard disk partitions on both of my hard drives and completely reinstalled Windows 7 Pro 64-bit. I downloaded the latest video drivers from AMD and installed those, too. Here is my setup: Motherboard: ASUS P6X58D-E Processor: Intel i7-930 2.8 GHz (@3.4) Memory: 12 GB Corsair (2 x CMX6GX3M3C1600C7 @ 1624) Video Card: XFX FX-795A-TDBC Radeon HD 7950 Sound Card: Sound Blaster X-Fi Titanium Fatal1ty Pro Hard Drive #1: Western Digital 1TB 7200 RPM (WD1002FBYS) Hard Drive #2: Western Digital 1TB 7200 RPM (WD1002FBYS) Optical Drive #1: Plextor PX-880SA DVD writer Optical Drive #2: ASUS DVD-E818A6T DVD ROM Monitor #1: ASUS VE258Q Monitor #2: ASUS VE258Q Monitor #3: ASUS VE258Q Power Supply: SeaSonic X750 Gold 750W Case: Lian Li Armorsuit PC-P50 Operating System: Microsoft Windows 7 Professional 64-bit Dxdiag reports incorrectly that my 3 GB AMD 7950 card has less than 1 GB of video RAM: ... Card name: AMD Radeon HD 7900 Series Manufacturer: Advanced Micro Devices, Inc. Chip type: AMD Radeon Graphics Processor (0x679A) DAC type: Internal DAC(400MHz) Device Key: Enum\PCI\VEN_1002&DEV_679A&SUBSYS_32201682&REV_00 Display Memory: 734 MB Dedicated Memory: 3043 MB Shared Memory: 1787 MB Current Mode: 5760 x 1080 (32 bit) (60Hz) ... The "msinfo32.exe" program reports exactly 1 GB of video RAM (actually 1,073,741,824 bytes). And when I navigate to "control panel...display...screen resolution...advanced settings... adapter" it reports the following: Total Available Graphics Memory: 4859 MB Dedicated Video Memory: 3072 MB System Video Memory: 0 MB Shared System Memory: 1787 MB The video RAM shortage errors continue to plague me, both in Aces High as well as other games. What's going on? Why does a fresh install go so very wrong? +++++++++++++++++++++++++++++++++++++++++++++++++ I've followed this up by updating the system BIOS, then clearing the CMOS, then yet another re-install of Windows and the AMD drivers. No joy. I just don't know what else to try, except maybe to RMA the video card.