I oversimplified when I posted earlier, BTW. Win95/98 and NT Workstation experience diminishing returns with RAM above a certain level. In general, (for example) the only performance difference between a PC running Win95 with 128 MB and 256 MB will be the number of programs you can have open before slowing things to a crawl, while there will be a noticable increase in all performance between 64MB and 128. Windows will gladly use any memory you can throw at it, but it only uses a limited amount (depending on version, CPU type, etc.) of memory well.