Lior, from your render, it seems you haven't activated Vue yet (or maybe this was an older render?)
Make sure you are using the latest build.
Also, as mentioned before, the display options is the most important part of Vue's stability, Instant and Background draw threads can make Vue crash if they are set too high, I would suggest you start with low settings for both, and increase them little by little, until it crashes again. this would be your the "breaking point", and then, lower the settings a little bit.