OE6 either won't open at all and I get the following message or it opens but
the message comes up when I try and open an email (new, old, sent, etc) - if
the inbox is empty the message doesn't come up until I try and read
something. This has been happening for a while. Sometimes OE will work
fine. Other times I get the message, reboot and then it works. Sometimes it
takes a few tries. At the moment, I can't get OE to open at all.

I have tried turning off Norton - sometimes it helps, sometimes not.

Here's the message (I have gotten this message in Internet Explorer a few
times):

Outlook Express has encountered a problem and needs to close. We are sorry
for the inconvenience.

AppName: msimn.exe AppVer: 6.0.2900.2180 ModName: msoert2.dll
ModVer: 6.0.2900.2180 Offset: 0000a27b