Thanks Virtual, great post. I did verify/ repair HD and it seemed ok. So intermittent, have not been able to spot when or why this happens, but I'll try to keep an eye.

The laptop goes to sleep and awakes every morning, but I think usually those log in items are there in morning. They are always there consistently after reboots and shut down, relaunch. So still perplexing. Do you think just deleting and adding them back could solve it?