When I got my new MacPro, and upgraded to Kona 3, I migrated my apps and docs from the old computer, a G5 2.5GhzDP. After un-installing the Kona 2 software, and installing all of the new software for the 3, I am unable to launch VTR XChange. It loads the capture window, and then spins the beachball, and then I get the window that the app quit unexpectedly, ignore, relaunch, etc.
Any idea where the prefs file for this app is located? That's my first suspicion...
You want my advice? No? Well, here it goes anyway.
Stop what you're doing right now and start over. In my opinion, it is best to NOT migrate applications over from PPC to intel on production machines. You never know what was left on your old system that can trip up your new one. Start with a fresh install of the OS, then update the OS and all of it's parts, then start installing FCP fresh and update all of it's parts, then install the latest Kona drivers for your version of FCP. Then install all the rest of your software goodies. It's the key to a stable machine and yes it's a pain in the ass.
If you feel that you want to tell me to go jump in the lake for such crazy advice, the preferences are located in your User > Library > Preferences folder with a name of "com.diaquest.AjaVtrXchange.plist".