I have been having a strange problem consistently for a very long time now. It might be because I have a lot of Facebook friends and contacts in my phone book but every time I click on any of those two buttons, the result is unpredictable. Sometimes, it works. Sometimes, it just halts, looks like its going to die but ends up working. Sometimes, it gets stuck and stays there my battery dies.

As a result, I always have reservations about doing a "Refresh" in particular. Note that I am using the version from Extras, not from testing or devel.