This is an elusive one and has been affecting some people since v2 was first released.
I cant replicate it so struggle to find it. I did think it was to do with the size of the window. if you resize it from full screen does it still occur?
I too have ran into this problem but for me it only pops up when I force the full screen view (toolscriptbutton9, displaying 16 cams) onto the split screen.
v3 has stalled for now, as i have just had twins and dont have any and i mean any spare time at the mo. Sorry
Although its late, congratulations on having twins!!
I would love to beta test V3 when you do find the time to continue working on it. I actually am going to be breaking your 36 cam limit here in the next few months. My projected total will be about 42 AXIS IP cams. While not all of those will be required to be displayed, it would be nice if we could enter in more than 36 but have them rotate and come into focus in a center pane when an event is triggered. Having weighted priority over which cam if multiple are triggered too would be awesome.
Our surveillance system comprises of two head units, one Quad, Quad Core is also the primary storage server, 15TB of raid6 storage as we're required to keep 90 days worth of footage. It also currently handles 20 of the cams and the remaining are handled by a Dual, Quad Core unit. I'm happy to say that they're actually over kill now that I have been able to offload the motion detection to the axis cams once I found the wiki article explaining how. I should be able to put all 42 cams on these two units no problem.
I have deployed several ZM installations ranging from very simple 4 analog cams to the one I described above and I love ZM and those that do use windows love ZM4MS for viewing. Personally I'm a Linux guy, I don't use windows except for at work but luckily I'll be able to use the systems at work to help do testing if you have time.
I created my own set of "how-to" docs for my colleagues so they'd be able to figure out ZM4MS if I shouldn't be available when they needed to figure out how to use it. I would be happy to do some touch up work and provide those to you if you wanted.
Thanks for all of your hard work on this app!!