Database is locked error on 2nd conn

Hi. I am attempting to handle two separate named connections to the same 
database in a class. Both are opened during initialization. The error 
comes on the second time the second connection and attempts an update.

I think it is possible the second connection may have not committed 
properly with the logic the first time so when I aquire the connection 
object the second time(in the method that is reporting the error) it 
throws the 'database is locked'. Does this make sense?

I increased the timeout to 10 sec on the connection, just to determine 
whether this would affect this behaviour at all but it did not. I have 
not set an isolation level at this point. Many thanks.

Regards
David