The system event log records Event ID 25, Source Outlook and the text is:
"Could not complete the operation. One or more parameter values are not
valid."

I'm having a problem with sending email from Outlook 2007. This is a new
computer downgraded to Win XP Pro from Vista Business by HP. I have updated
XP and Office to the latest servicepacks and updates. BCM for Outlook 2007
is also installed.

Sometimes I can't send messages to multiple contacts. I can send to each
individual contact but having them all in the address line seems to be a
problem. When I click the send button nothing happens. We are only talking
about 2 to 10 addresses. If I start removing addresses I can usually send
the message when I get down to 1 or 2 addresses. Other times it will send
them all without a problem.

These aren't the same addresses either. It can be just about any address(s).

I'm not using any custom forms and we aren't using Exchange at this point.
It's just a pop3 account with an ISP I'm not using Exhange.

I'm not using Tasks which seems to be the only problem recognized by MS.

I've tried creating a new pst file and importing everything from the old
one. That didn't fix it. I've tried exporting to a new pst and using that
one. That didn't work.

I've done the same with BCM. No help there.

Thanks,
Dave F.