I found that it really does depend on your app. At work we use Lotus Notes for email, enteprise crap IMO, but you use what you're given. I habitually used a memory manager, even on XP with 256Mb of memory, because I found that with the apps I had to have open, if I wanted to use quicktime or anything else like that then it would corrupt system memory used for system icons, etc. and then the whole system would get slower. Happens after a week anyway, regardless of what they say about realiability. But having decided to move the OS into RAM in a hope of getting better response times, I discovered a problem a few days in, it seemed to be even slower, then I realised I'd forgotten to get rid of the the memory manager (RAMidle XP) which loaded at boot, and XP hid, because it's not an "active" application, (meaning it doesn't update the icon in the task bar...) Once I'd gotten rid of that, then all was smooth again. At least untill I loaded quicktime, when it again killed the icons, but the machine didn't grind to halt afterwards, and continues to be responsive, so I consider this a small victory, YMMV :) later jb