Thanks for your post.
Checking our bug history at this end, it looks like similar issues have been raised before, but were fixed back in 1.1
If the error you received had a "serious error? send report" link on it, could you please submit that, along with your email address in the box so I can find it, and we can see what's going on?
I agree, it's most likely the "con" that's breaking it.
*Edit* scrub the above, I've found the error report!