SGP taking forever to load

I have been having a problem with SGP recently where it takes forever to start up–like 5 minutes. I’m using the latest version, and have even tried the beta to no avail. Any ideas on how to fix this? All other programs on my computer load just fine; it’s just SGP that seems to hang.

Is it loading a sequence with a LOT of targets or events in it?

Thanks,
Jared