Thanks to everyone for responding. I had indeed fooled around with some settings (alternating from the locked to the 'unlocked' position, and lowering the security settings), but the only thing that worked for me was in shutting down the program altogether. I will, however, try Acphemon's suggestion (after re-installing the program) and see how that pans out for me. Zone Alarm appears to be a VERY capable Firewalling program, and I can't believe that it is free. If everything proves to travel smoothly, behind this matter, I will very seriously consider purchasing the full-blown version (Suite, in fact, if it comes like that).