is the error occuring in mirc or is it a windows error?
mirc will get a windows error if
1) you are using up to much cpu and try to do to much at once while the cpu is high.
2)you are running a script that has a heavy load.
3) if your computer is getting sluggish and u try to do something in mirc.
there are many other things that would cause this.. but this is what frequently happens to me. i usually fix it by either changing to a lighter script, turning off some of my programs
