If you're saying that you have ZA and
Windows firewall working at the same time, I'd shut the latter down. Running two firewalls or anti-virus is not a good thing. As to another one, you could try Comodo.
Everything that irritates us about others can lead us to an understanding of ourselves. -- Carl Jung
eVGA X58 tri-SLI, i7 930 @ 3.8GHz., Corsair 6GB Dominator, Inno3D GTX470, eVGA260
ASUS P8P67 Pro, i7 2600K @4.60 GHz, 8GB RAM, eVGA GTX 460