I tried it several times during the beta and this build always failed on my computer. It just won't even start. I have not had a chance yet to try the released version but I assume it is the exact same build.

And yes, I use Avast. And no, I do not see adding an exception for the bb folder as an acceptable solution! Any company can get hacked and if/when PGM gets hacked you are inviting an infection in your machine by disallowing Avast from protecting the bb folder. No other modern software program I run requires this exception!

I am amazed that people here are suggesting you "disable malware checkers on /BB" and "try disabling any A/V software". Exactly why are you guys even bothering with virus/malware software if your response is to disable it and let problem programs run???