deadlock victim

Here is the exception I am getting, any idea why this might be happening:

Exception: ThisMethod is done: let this go: Exception:

Transaction (Process ID 74) was deadlocked on lock |

communication buffer resources with another process and has been chosen as the deadlock victim.

Rerun the transaction. Stack Trace: at

This previous thread on the deadlock topic, along with the links it contains, might help you: Deadlock|||

Thanks for the reply.

While users are working in the user interface I am inserting data to the table with another that is back end for the user interface. Although we do insert and update I do not think that user are dealing with the same data row, so I am assuming I should not be receiving deadlock. Does SQL server do RowLock or TableLock. How can I get my insert and update work on the RowLock. Can you give me sample sql statement.