I'm running OSX 10.4.10 and VO seems to be unexpectedly freezing up and causing me to restart repeatedly (every time i restart and open VO it freezes within a minute of logging in/being in the game).

This happens over and over again, and only when I come back to VO after half a dozen retries does it work (for an unexpected amount of time at least).

So far I've had 3 sets of these repeated crashes.

I looked at your bug report and it looks like you have mpengine=1. Try setting it to 0 or just renaming your config.ini file (so you don't lose your personal settings) to see if making VO generate a new one would help your problem.

Hmm, renaming the config file didn't seem to work; just crashed then. :(

How would I go about changing the mpengine to 0?

You have to open your config.ini file in a text editor and search for mpengine=1 and change it to mpengine=0