I've been reading about memory limits on Windows XP (32-Bit version) and read that the total amount of memory it can see is 3 Gigabytes (even if you have 4 Gigabytes of memory installed) but my query is about what someone told me but I don't know if it's true or not? I have 4GB of DDR2 800 Ram (four 1GB sticks) and a GTX 275 Graphics Card with 896 MB of memory, and I was told that XP can only see and use a total of 3GB of memory (and no more!) so it would see the 3GB of physical memory out of the 4GB but because it would also see the 896 megabytes of memory on the graphics card it would take the 896 megabytes off the 3GB (3072 Megabytes) so the total usable physical memory available to my computer would only be 2180 Megabytes leaving almost 2 gigabytes of memory just sitting there doing nothing, is that true? I'd appreciate some info on that. Thank you.