previously, mirc's mdi windows (server, channel) looked like vista

since the new mdi windows were introduced (7.7 or thereabouts? they now look like windows 10) they no longer recognize mouse clicks on minimize/maximize/restore; this is true when normal and when maximized. the system menu still works fine. double-click on titlebar works. right click on titlebar does not work (assuming this is supposed to do something).

i suspect those are custom mdi windows that do not conform to windows default -- hypothesis: you broke something.

just to clarify: the main mirc window works fine, the problem is just the mdis.

this happens on multiple computers (somewhat similar but not identical setups), so this is not a single localized problem.

i don't quite know what specific details to give for you to troubleshoot this, be feel free to ask.