Hey mortarman-
Are you crashing specifically when trying to Play? Make sure you are on the latest Oculus runtime (0.4.4) and that your video drivers are up to date. If your crash is happening at times other than when pressing the Play button then it may be a related yet different issue. If that is the case it would be best if you created a new post in order to monitor and support the issues separately as well as make searching for separate issues easier in the future.
Cheers