The source of the bug needs to be tracked down regardless. It's difficult for forum users to determine if the problem is with mIRC or with the font they're using.
The problem is visible using some (hardly all) third-party Unicode bitmap fonts and Unicode vector fonts (such as the font called Flash), in addition to Microsoft-provided fonts such as Lucida Console, Lucida Fax (Office 2010), Lucida Sans, Garamond Premier Pro (Office 2010), Giddyup Standard (Office 2010), Magneto (Office 2010), Minion Pro (Office 2010), MV Boli (Office 2010), Myriad Pro (Office 2010), and Wingdings (look very closely). I shouldn't need to keep listing off fonts which exhibit this problem.
It's reproducible on Windows XP SP3 using a fresh install of mIRC 7.1, with absolutely no scripts involved. So the OP claiming it had something to do with a script is not the case.
I absolutely acknowledge that there are some fonts which don't do this, but the inconsistency is absolutely bizarre. mIRC is the only Unicode program which has this issue.
Is it possible for Khaled to make an appearance and help us track this down? I have a feeling there may be some "unique" handling of certain characters within mIRC's text output model.
Back to 6.35 for me until this gets solved.
