Outlook Error Message

[ET Sherman]

I have a database that generates reports to be emailed
via Outlook 2000 SP3. I get the following error message
from Outlook sometimes when reports are of a certain size:

"Could not open one or more attachments"

M/S Access creates a snapshot file then opens the default
mail program and attaches the report. It works fine
until the report is of a certain size then the message is
generated.

Any help will be appreciated.

Thanks,

ET Sherman