Early on, I found, on accident, that in the first office you can purchase, if a text bubble pops up I was able to press my middle mouse button and enable the quick scroll to move around the screen. All fine, except that I was able to scroll over to the R&D department, which I had yet to unlock, and when I closed the text bubble, could no longer quick scroll around my screen, meaning I was trapped in the defunct R&D department until another text bubble happened to appear. Hopefully my meaning here was clear.
Heya,
I just replicated this quite easily. Many thanks for the feedback!