Good news - after dropping the slony schema on both nodes and recreating, 
everything seems to be working well.

Thanks for listening,
Jason


Andrew Hammond writes:
>    My plan now is simply to drop the slon schema on all nodes and recreate 
>    the whole thing.
> 
>    I'll let you know how that goes. If you have any other suggestions on 
>    how to get to the root cause of the problem described below I would be 
>    happy to try them out.
> 
> 
> 
> How did your cluster rebuild go?
> 
> Andrew