text: free firewall program from zonealarm pro? i downloaded the zonealarm pro and i thought it was a free program but it said that it was a 15 day trial, is this correct?  if it not a trial program, should i be deleting my other virus / firewall programs because my computer is now running very slow (actually i had to restart because it took forever to send this message through)  does this program have a visual trace attack feature like the mcafee firewall program? i use comodo, it is better than zone alarm and it is also free.  http://www.comodo.com