Just FYI… pfSense seems to be a continuous work in progress, but it is still one of the best FREE alternatives out there. There are many issues on getting packages configured properly, and information is spread all over (although this forum is a great place to get started). Anyway, I found out that in many cases (more often then not), simply re-installing a package is NOT enough. Also, restore using the "Factory Defalts" from the Diagnostics menu, does NOT clear everything. That is a VERY MISLEADING name. The only thing it resets is some superficial settings of the XML config file and web user interface. Many stale configurations and files remain around, and specially those that where manually changed/created via shell.
So, my 2 cents are: once anything gets miss-configured (unstable), simply backup you configuration, do a brand new fresh install ("formatting" the drive), EDIT your config-pfSense.XXXX.xml file, and manually remove everything related to the bad/hung package, and then restore you config back. YES, stale settings will also remain the XML config file, even if after you remove packages our related items using the web interface!!!