I use this snapin quite a lot, its the quickest way to see if someone is logged on for a start. But for some reason, when I try and look at sessions on some computers it totally freezes MMC.
On my previous XP install, it worked perfectly, on Windows 7 it worked perfectly, but on a reinstall of Xp on the same machine, it freezes and can barely list 5 users. Its not a sporadic thing, it either works on a machine or it doesnt.

Is it network related? Something I need to change on my PC? Its not that are loads of people logged on, doesnt matter if there are only 10, it'll still freeze. Also on multiple servers so its not specific to one server.

Has anyone else come across this? To put it politely, its bloody annoying