Sorry I can't reproduce this on my machine:
Even if it crashes it is working just fine, even if I let that page open and resize the window (don't know why this screenshot is cut off...
I can click on what I want and it resizes it properly.
Nope, this is handled by TurboVNC, you will get only issues when you resize it too quickly a few times in a really short period of time, so to speak minimizing and maximizing the windows once in a second... But this is really hard to pull off...
So is it now working again?