Home Forums Networks & Cross-Platform Networking Airport seems to search continuously....

The Airport on my MacBook Pro seems to search for networks every 15-20 seconds or so - (at least, if I move the cursor over the icon in the menu bar, it shows that it searches often) . When I was trying to stream music, that seemed to be one reason for so many dropouts. It also seems to effect Skype and iChat quality. The other Macs do not seem to search anywhere near as frequently as the Pro (in fact, as I write the Pro and MacBook are side by side and the MacBook has not once started searching for networks). We have many networks in our neighborhood, but the home network I use is on the top of the list of preferred networks. What is going on with the Pro and how can I get it to stop searching so frequently?