Thanks. Interesting. So the MDI handler is drawing the icons of two different windows on the left, both usable but one of them is actually for the status window, and two different-themed buttons on the right. Bizarre. At this point, there is nothing more I can do, unless someone can find a way of reproducing it. However, even if we do find a way of reproducing it, mIRC has no control over the drawing of the buttons in the menubar, or the way the MDI handler works, so the odds are that it is simply a bug in the way MDI works on versions of Windows later than Windows 7, due to Microsoft no longer updating MDI support. As I mentioned in my previous post, the only solution would be for mIRC to implement its own custom MDI system, a custom menubar, and so on, which is a project in itself.
