No other programs show the same behaviour as mIRC, firefox is around 10% cpu when scrolling on heavy sites like deviantart.com, Notepad++ has 5% cpu when scrolling a 4mb irc log file.
mIRC is 100% cpu when scrolling a single page of text, or marking a single word with the mouse.
When I stop scrolling/marking mIRC's cpu usage drops to 0 again.
If it was just the cpu usage in mIRC I wouldn't care. But mIRC is extremely laggy and unresponsive when scrolling or selecting text. If I go nuts and scroll 400 times, mIRC will literally keep scrolling for seconds.
(ps: I'm using XP as I wrote in the original post)
