In your true spec systems are you able to get giga to load a full 1 gig in machines that have 1.5 to 2 gigs of ram?? I have 2 gigs in one of my XP machines and the Msg32.exe is only using 700 mb according to the task manager- the performance meter shows 1 full gig not being touched by giga or xp. Still, Giga will not load past 60% memory usage. When I try I get the Error Code 5 message : unable to allocate the memory required to download this instrument. It seems giga and XP are fighting over 1 gig of memory even though I have 2 in the machine. I know I have read on this forum there were fixes to this, I thought it might have been from you. Any thoughts you have would be greatly appreciated.