Firstly, please realise that mIRC is not primarily for the sake of gaming, so forgive any ignorance of myself or anyone else on this board in relation to what you're talking about
By ONLY changing mIRC's options in the options dialog then no, it is not possible for anyone to harm your computer. Not to say that you should change any options at someone's request unless you know what they do, but there's nothing there that can let someone follow you or control your computer.
However, mIRC has a very powerful scripting language that can potentially be very damaging to your computer if used incorrectly, and can indeed let someone execute any command they want on your computer. So, if you put any form of script (press
ALT+R to access the Script Editor[/color]) into your mIRC, then it's quite possible they did something lame. You can unload all your scripts through
File >
Unload.
Regards,
