You don't mention which VERSION of BiaB you are using, but there are sme great answers and tutorials for this problem in the BiaB FAQ pages.

Link to FAQ support pages is at the bottom of my posts in the .sig area, good idea to bookmark the FAQ page for your version as well as to use the "ctrl-f" on the page to find FAQs relevant to a keyword of your problem, saves having to pour through all of them.


--Mac