One thing I have noticed is the harddisk consumption by poser5 [which is huge] - would help if you can set your virtual mem (4096 min & max) to a different drive than the one you are using for p5 as p5 does harddisk swapping big time then your virtual mem swaps to harddisk at same time and kaboom - memory icon pops up by time on status bar! Also, I have yet to have the memory icon come up using ntsf disk formatting on xppro but old machine [xppro also] has fat32 disk and it pops up on anything halfway big and animated. Hope that helps somewhat.