I just found this thread, but I have the same issue with MiniDisplay and iMon. I will try your patch asap.
I occasionally have another problem where the MiniDisplay plugin is not 'connecting' anymore to the iMon driver. When I look at the iMon Manager icon I can see that the exclamation mark (3rd party control) isn't there anymore and I have to activate this setting again in the iMon Manager?! I am running version 6.x of the iMon software.