I recently started using Snarfer to monitor stuff I am looking for in Craigslist. I have noticed that once in a while I will miss excellent deals for stuff I am looking for only because I don’t get an immediate notice on the top of the screen (while I am surfing the net or using the word processor) whom would bring the new posts to my awareness right after they’ve been posted.

Is there any way to enable immediate notice pop up windows which would indicate that new posts have been added?

Oh, and another thing -  I want to be able to get frequent Craigslist posts updates but I haven’t set Snarfer to check the Craigslist database every few minutes because I understood that if you set Snarfer to check the Craigslist database every few minutes you might get banned. Is that true? What is the minimal amount of time which is allowed to check the Craigslist database?