The manual says if I put in 4 x 1 GB modules, I may lose 1 GB addressable RAM with 32-bit Windows.Would the same apply if using just 2 slots with 2 GB each?If not, is it better to use 4 x 1 GB or 2 x 2 GB, as the former is considerably cheaper (I am disregarding future upgrades).Any other memory tips for this MB gratefully accepted. Thanks.I want to add that I will use MS Virtual PC, which is why I need more than 2 GB.I will be using XP and Vista Ultimate (dual boot) and meed the 32-bit versions for compatibility. Also hosting Virtual PC for Windows 2003 Server (for testing, not production).