Is the full error message "The row was not found at the Subscriber when applying the replicated command." I didn't have a clue what you were talking about until I checked sysmessages and realised it was a replication error.
You could profile the subscriber and see what command the distribution agent is trying to apply.
If you check the MSrepl_commands table in the distribution db, you can tie an xact_seqno to an article id and a publisher database id.
If you go to the publisher database and query sysarticles, you'll get the table name
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass