Comment 6 for bug 679427

I'm no expert with reading backtraces, but it does seem to crash while it is deciding where and what size to draw the main window.

Hugin-2009.2.0 introduced some code to prevent Hugin starting with a screen location off the side of the monitor - This was to help laptop users who were constantly switching desktop sizes and getting an inaccessible Hugin. It is possible this code breaks with your dual monitor situation.