We have a customer using Outlook Express with about 8,000 messages stored. When they do a search of the email and are presented with a list of results clicking on any of the results in the list sometimes works and sometimes does not.
When it does not they receive the error message "Outlook express encountered an unexpected problem while displaying this message. Check your computer for low memory or low disk space and try again".
They have just upgraded to very high-spec PCs and so there is certainly no lack of disk space or memory.
I noticed that the window which displays the error maessage also has the e-mail header information from the e-mail it is trying to display. In each case it shows "Sender unspecified" whereas in the search list from which the email is selected it shows the correct sender.
Any ideas? Thanks.