I'm running the 64bit version of Windows 7 and I have 4gb of RAM on the mother board. However the system is only showing 2.9gb of usable RAM. This is less than it was showing on 32bit Vista. Any ideas?
Thanks for the responses but I've still got the same problem. The initial suggestion didn't work and I can't find the BIOS options that were mentioned. I have an Asus Commando mother board....might the options be worded differently?