I've used Zone Alarm for quite some time, always liked it and had very little trouble with it, until recently.
Lately if I leave my comp running for overnight, after about 24 hrs or so if I try to start anyh programs needing internet access (TS, Firefox, games, etc...) they are unable to connect. At first I thought it was my router or my cable modem but no dice. Then I tried killing zone alarm and bam everything has access suddenly.
Even stranger, is programs that were running (such as AIM) overnight still had access with Zone alarm running, just anything that wasn't already connected to the internet. Also, if I restart zone alarm it goes back to this weird state, I have to restart to fix it. The internet lock is not engaged either, toggling it also has no benefit.