I've also been hit by this bug on a new Karmic install. Had no problems with Jaunty on the same hardware.
Tried csulok's work-around from post #32, which didn't work. Disabling IPV6 in Firefox does work (but only for Firefox, of course). Changing my IPV4 settings to use Open DNS works universally, but seems like a rather unpleasant kludge to use as a permanent fix.
I've also been hit by this bug on a new Karmic install. Had no problems with Jaunty on the same hardware.
Tried csulok's work-around from post #32, which didn't work. Disabling IPV6 in Firefox does work (but only for Firefox, of course). Changing my IPV4 settings to use Open DNS works universally, but seems like a rather unpleasant kludge to use as a permanent fix.