I know I am not directly involved, but I will try to help you out with this. Using Mac OS X 10.5.8 (Intel version), I cleared Console of all records, then opened PPRNG. I clicked each of the options, and sure enough, nothing came up. This is what was shown under the Console application:
On the contrary, nothing appears on Console if I open the "Seed Searcher" under the Generation 4 header. Checking the "Window" menu also only gives the PPRNG option, so there are no windows being opened at all. I do not know if you need logs for all of the different options, but I included them nonetheless; please note that I did try a few buttons before formally trying and logging them, in case that is a factor in your debugging.