You need to unload ALL of your scripts, and then try using mIRC. If it works normally (no error messages), load ONE (1) script, and try using mIRC again. If it still works normally, add ONE (1) more script. Test mIRC again. Repeat this process- adding one script at a time and then testing mIRC, until you add a script and mIRC stops working. Bingo, you now know which script has the error in it. Tell us which one has the problem, and CUT AND PASTE the exact error message that is showing up. With this information, someone will possibly be able to help you.
-genius_at_work