Why do my emails minimise immediately after I open them?

C

Claraluna

I have Outlook 2000, XP Pro with SP2. The problem starting occurring some
time after my machine was rebuilt with SP2, as if I had accidentally pressed
some kind of shortcut key. Each time I double click or Ctrl + O on an email,
in any View, it opens and minimisies to the taskbar immediately. I've reset
all Views to the original settings to no avail.

It's driving me insane - any advice appreciated.
 
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