simonwoof wrote:
but these are in my menubar
is it possible that there are other plist's?
I wonder, what was in your Login Items?
As far as I can tell (and it is very difficult to tell from your descriptions) you are describing normal operating system behaviour. It is possible that one or more of your Login Items was consuming all of your memory and causing the OS to quit other applications to make room.
While you are no longer launching the offending application(s) at startup, it is still on your machine. If you were launching it at startup, it may be something that you want to run on a regular basis. If so, you are likely to continue to experience this problem the next time you run whatever was causing the problem to begin with.
I suggest you copy that file back to where you found it and/or restore it from backup. Then, run a a little diagnostic program I wrote to help show what might be causing these problems. Download EtreCheck from http://www.etresoft.com/etrecheck, run it, and paste the results here.
Hopefully it will list all of your Login Items and that might help to show what the problem is. It will also list all of the various background processes that are installing all of those menu items.
I suspect that you were launching pretty much every major application you have from your Login Items. That would exhaust your memory and put the OS into memory saving mode where it would start quitting applications on you.
Disclaimer: Although EtreCheck is free, there are other links on my site that could give me some form of compensation, financial or otherwise.