You do realize that since Netscape7.1 is based on code just a few weeks short of the official Mozilla 1.4 release, it has its own popup blocker built in right? Unless you're using Internet Explorer, you have no need for 3rd party popup blocking software.
BTW, do yourself a favor and download Mozilla instead. It gets rid of all the AOL junk and is updated far more freequently (Mozilla is at 1.5 now).
Although my popup stopper always works fine with IE6, it would delay the loading of a page in Netscape 7.1. It would finally load. Now, all of a sudden, I notice that there is no more delay on Netscape. Either Netscape or Panicware must have done someting good. This is for information only.