Great info Joe, will try. So you think it's the fault of one app toppling the others?
Put it this way, I think it is a possibility worth checking out. I also think it is a possibility that you have an out of date or semi-compatible app, which may be initiated by Startup Items, a Launch Daemon, or Launch Agent.
Maybe first delete all from startup items and re-add there first as Virtual suggested?
It is always tempting to use a "shotgun" approach but then you never know what the actual problem was and that leaves you in danger of unwittingly recreating it. As a Software Design Engineer, I was always taught that troubleshooting "best practices" all say try one fix at a time and if that does not solve the problem restore the previous state and try the next. It may take a little — okay with an intermittent error possibly a lot longer — but it is safer in the long run.
