I can confirm this behavior. The sources - window closes immediately after selecting it from Synaptic. This is on a fresh Feisty install (with Herd 1) on AMD64.
-- Software Sources Window Closes Upon Opening https://launchpad.net/bugs/71983 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
