Is it me; or is netbeans getting a bit flakey of late?
There are a couple of code completion bugs in 5.5 which drive me absolutely nuts. I've submitted these and fixes have been written. The trouble is, getting them.
I've been trying with the M6 development release. But that's missing most of the refactoring tools.
I've just downloaded 5.5.1beta, which seems OK until I made the mistake of downloading the UML tools stuff, now that's gone nuts and I'll probably have to re-install. OK, so maybe that's the price you pay for "beta".
I'm starting to think seriously about Eclipse.

