If you have feeds that sit behind an HTTP Authentication scheme, they stopped working with the 4.2 release of BottomFeeder. This was a regression - I hadn't noticed a few code changes between VW 7.4 and VW 7.4.1. I looked at that yesterday afternoon, and fixed the problem - look for the NetResourcesHTTP update in the update tool.
There have been a few glitches like this, so I think I'll roll out a 4.3 release that simply wraps up all the bug fixes. If I have time for that this week, it will be out before Friday. If not, it won't be until after ESUG.