Hello. I have similar problems with the latest IDE too. It does it all the time, but only on the notebook (HP EliteBook 2540p, Intel I5) does not actually hide the IDE window and then the program window is badly redrawn. On the other computer (AMD Phenom), it all works well. But I do not have enabled system upgrades Windows 7 on my laptop because it can burn me, when I want to turn off my computer, so Microsoft will not dictate how long I have to wait until I'm upset to install annoying updates. I do not have to wait and I will not.
I always solve this bug through the task manager, where I end the QB64.EXE process. Otherwise it is not possible. I thought the latest version of IDE would be fine (before, I used a lot of .75, which was so angry, but unfortunately, it's the same. Both PC´s use W7.