Always a possibility as there's no way Khaled could have every possible combination for cpu, ram, video card, sound card, internet connection, etc., etc., etc (ie: anything else that might be related to how mIRC works).
If you could tell us what video card you have, someone else might have the same card, and might be able to test if it's a problem with that card or something else. Please also specify what driver version you're using when specifying the video card, as well as the resolution that you're using.
