Cabos

I have used Cabos with my Macbook for several years consistently and love the program. Recently I had to re-install my MAC OS - 10 and when I went to open Cabos, the program now will not find any networks. I deleted the program and downloaded again however I still cannot connect to any networks. I made no changes to my settings or my DSL Cable and have a great internet connetion. Any help would be greatly appreciated!