I am running the 64 bit version and having the same problem...
I was debating about launching a Windows VPS over at OVH and installing it. I just have to deal with the issue of the moving 70+ computers.
Did you ever find the solution to this issue? I am experiencing the exact same thing on my server as well. I am running a 2GB VPS over at OVH and I have noticed this issue happening for a while. It gets to the point where I cannot even load SC.
Customer support service by UserEcho