just been reading different bug reports and it seems people who installed it fresh are getting many problems like me, but ppl who have been following them a while and updating each build got no problems, the people who are following them and updating regular are most probable ppl to be reporting bugs so this is prime example how such big bugs get through easily
heres a fix for ppl having trouble launching on a windows pc, thanks to KotW

------- Comment #1 From KotW 2009-12-21 12:54:21 -------

Getting the same behaviour with the "new releases" add-on in XP SP3, too.
Deleting the add-on folder from "Application Data\Songbird2\Profiles" allowed
me to launch.