2 applications which I use (Photoshop and Nikon Capture NX2) need a lot of memory - more than the 2 Gb I have on my current system. I am looking at buying a replacement system which can have 4 Gb installed, but this has an NVIDIA GeForce 7050 GPU which uses shared memory - up to 512 Mb of it, I think. Bearing in mind the XP limit of 3 Mb, I am concerned that, after the GPU uses it's full allocation of 512 Mb of RAM, I will be left with only 2.5 Gb of RAM for my applications - which is not really a big enhancement to my current RAM resource. Is there some way that I can force the DVMT (Dynamic Video Memory Technology) to supply the GPU with RAM from the 3 Gb to 4 Gb range which Windows XP cannot use? This would then improve my RAM resource for applications by 50%.