Mail wont save to webmail - Help!

I save a copy of all messages on my webmail server but for some in the last 2
weeks, it will only save 1 or 2 email. But in Outlook, there will be like 50.
I have tried repairing the Outlook from the help bar but that didnt work. My
internet company tells me that Outlook is the problem and not them. The only
thing I can think of that it might be is that recently I added a Belkin
Wireless G Notebook Card. Could this be the problem? If so, How do I fix it?
I will be going on vacation soon and need to be able to check email from the
web mail server. Can anyone help me?

Thanks,
Becky