In case this helps bring attention to your problem, you are not alone. I have
the same problem with my computer at work. Desktop support reinstalled MS
Office twice. Then they re-imaged my pc. It's happening again. If I click the
'New' button or 'Reply' button in Outlook, all Excel windows close. There is
no save warning. There is no error message. There is no 'send this data to
Microsoft' dialog. There is no Excel.exe process left hanging. Excel is
totally gone. It's a real pain when you are trying to copy data from Excel
into an email because whatever you copied disappears along with Excel so you
can't paste it into the email.

"ckotas" wrote:

Hi -

My excel instance just seems to crash (disappear) when ever I reply to an
email, write a new email or open Word. Word is not my email editor.

I have tried uninstalling office then re-installing, tried repairing excel,
tried resetting the registry settings (start - run - excel /unregserver the
start - run - excel /regserver)

This is getting a bit irritating. Close as I can come to a root cause is a
MS Offcie and/or windows security update. I am not losing much (if any
work), but its trying.

Any ideas?