Crash on Tunsinn - call stack function malarkey

[Karlos]

Anyone seen this error message? I got to Tunsinn, after few fights sailed to the elven island to resupply, but cannot come back. The game always crashes and spits out the aforementioned message. Tried to reinstall, got the newest drivers etc. but no luck.

Anyone had this problem? Can I finish Tunsinn with the troops available there and leave it for good? Or does the plot require me to come back? Thanks a lot.