I don't know what's happening with that, but I find it interesting that when I check the CPU usage for mIRC, it normally comes back with soemthing between 90 & 110%...YES 110%...how in the world a program can use more CPU resources than the CPU has, is beyond me. I've stopped worry about it, and if mIRC seems to be running slow, a shut down of the program and then restart usually solves the problem. I am running Windows XP SP2 (Professional version), although I'm not sure what the differences are.