redefining a keyword?

there seem to be some strange bugs in CS 5 Dreamweaver! The first one is that every time I add a record set it replicates the second line in the source code, which is usually the include for my connection. Next – every time I add or remove a behavior Dreamweaver will erroneously rewrite portions of the source code and even drop certain lines, usually a dim statementfor when the connection string is "reset" – I think I can get around this problem is the following is allowed:

redef dim myvar if def not def myvar then realdim myvar else do nothing

How do I code that?

And finally here's a peculiar problem: if I create a record set (call it "Fred"), then delete that record set, and then try to re-create itI get told that the name is "already in use". So this leads to some very strange names for record sets – tester11111, tester2222222222, and so forth.

any suggestions?

Thank you.

Ross