Problem: My system is only showing 2558MB RAM. (Last week it was showing 2816MB) I have 3GB in the system. Total System Specs: Intel E6750 2.66GHZ 1333 / 3GB 800MHZ DDR2 RAM 4-4-4-12 / SLI 512Mb (1GB total) nVidia 8600 GTS / Vista HM Premium / nVidia 680i SLI mainboard / 250GB 7200RPM HDD / Ageia Phisx / Soundblaster XFI Extreme Gamer Ive Tried: Updating the bios, reinstalled drivers, replaced the ram with ram from my other system which also has Vista Home Premium 3gb Ram 2x (SLI) 512Mb nVidia 8600 GTS (that system shows 3GB ram.) So i know its not the Ram. Any suggestions?