Hiya folks - also using Mandy 10 and had no joy with any of the above - I discovered I've got IPv6 DNS lookups happening, which are (eventually) timing out. According to
http://weblogs.mozillazine.org/darin...es/005753.html this is turned on in the kernel and setting it off in mozilla doesn't help. ( I was having the same problem in konquerer )
The fix is to add "alias net-pf-10 off" to the end of /etc/modprobe.conf (but only if you don't need IPv6 in your kernel, of course) and reboot.
Disabling it on one interface at a time would be cute, and make the reboot unnecessary, but I don't need IPv6 at all, so I've not gone there.
HopeThisHelpsSomeone.......