Outlook reverts back default settings and erro messg about memory

I have multiple users in different locations that are having some of the following symptoms. Not all have the same issues but the timing is odd. 5 with Office 2003 and 1 with 2007.
This just started to show up late yesterday and this morning, I think it has to do with a MS update but not sure. All machines have been scanned with MacAfee, Spybot and have Defender running. Most are behind a sonic wall, the remote systems have stand alone protection. All are set to update automatically.
The accounts are all POP3 we are not on exchange and are not connected via server and in one case she is a remote user.
Outlook is open (have task to do this) but it did not auto receive emails the setting are correct in options. Have to manually do the task. One other thing the remote user is using office 2007 and nothing I do is fixing her issues she can not send or receive, even manually she get the attached error message.

Some have mentioned a memory error message see attached.The atached is from the Office 2007 system noone else saved or wrote down the message.(don't you just love them)
Some go back to default outlook view setting anytime they restart outlook, some workafter the restart.
One had error that word was not responding I had to close Outlook via task manager and he is working fine now.(Office 2003)
So you can see not all have the same symptoms, I went to MS updates but nothing new posted today. A restart of Outlook sometimes works and reboot or shutdown sometimes works. A system restore did not work on the 2007 system.
I was able to create a new XP user and move everything over on the office 2007 system this worked. But found out I have 2 other 2007 users out there and would like to know if there is another quick fix.
I had not authorized Office 2007 yet. Since the most trouble was the office 2007 system this wold be my main concern the 2003 seem to be working now.Start Free Trial