I work for a large IT community. We have 300 users, mostly using Windows XP machines, and mostly Office 2003. We are in the process of upgrading to Office 2010....

I have 1 user who has an issue I've never seen before. She will be looking at a list of mail (appears to be only after performing a search, but not positive). Most or all of the mail has already been read (marked as Read).

She has outlook setup to view in the preview pane. She will click on one, then another, then another, and all of a sudden that one will flash in the preview, and then disappear from the list. She can click on one or two more, and the same thing will happen. Click on different messages enough times, they will all disappear. I watched 7 messages go away in a minute this way. If she refreshes the search, they appear to all come back.

I upgraded her to 2010 because she needed it, and because it "may" clear up the issue. It did not.

So my question is this.. Anyone have any idea what setting she has that is doing this. She is the only prson in the whole organization that is seeing this. I'm at a complete loss.

Help please.