nForce update hosing bittorrent

I recently installed an update (15.23) for my nVidia nForce chipset.

now my bittorrent client (Vuze) is “firewalled” (can’t connect to peers, NAT error).

[when installing 15.23, I did not install the “Network Access Manager” firewall; I had had to uninstall it months ago because it crashes Vuze.]

I don’t know why, so I’m wondering if it’s Comodo…

my Comodo 3 with Defense+ is set to Training Mode.
is there something I should do to get Comodo to leave my chipset drivers alone?

thanks in advance!