Seems to me that SSl isn't the problem.. Last night i restarted, deleted the SSL dlls and didn't connect to SSL servers but 2 other servers instead and picked some chans from there. I'm on 4 networks about 30 chans now and mirc.exe has been running for 10hours:

Mem Usage: 33mb
Peak Mem Usage: 96mn
VM Size: 421mb!!!

I joined a few big channels tho but my scrollback buffer is 2048 so that shouldn't be the reason, dunno what the hell might be frown