Hi, I have been struggling with something for months now...I have XP64 and 4 g of ram. I have installed the latest sb audigy 2 drivers for xp64. I then install a few of the 32 bit apps that come with the soundblaster specifically the THX console. Now the problem is this; If I do a sound test from the THX console, I will hear sound first from the left, then the left AND right, then the right, then the left front AND left rear, then the Right front AND right rear. What is supposed to happen is left then center, then right, then rear left (only) and then rear right (only). Now, if I go in games it always says that I have a 2 channel sound board, 5.1 options and EAX are greyed out! If I look at DXDIAG, it shows that there is no hardware acceleration available and EAX 1 and 2 and 3 are not supported. Now, if I go into BOOT.INI and set /maxmem=4096 then the audigy works fine! All of the options are available in games and the THX console works properly. Furthermore the DXdiags shows full support for EAX What is happening, is that if I use all of the ram then the sound blaster doesn't work. If I limit it to 4G max, then windows will allocatge I/O to above 2.8 G of ram and everything is fine. Except, that now I have 2.8G of ram instead of 4 g. Anyone else run into this with 4G of ram or more? After all, this is a 64bit computing forum and I would think that other people must be running more than 2G with a audigy card! Thanks