Hard to tell at this level of detail.
Which mail account type are you using?
Do you get any send/receive errors when you put in your password?
What did your mail admin/ISP say?

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Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
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Real World Questions, Real World Answers
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> i am having a problem with my office outlook 2007 it was fine yesterday
> but
> for some reason today it seems to keep wanting my password even tho it is
> set
> to remember it b4 any ideas what is going on? is it just something on the
> server to why it has suddlenly started asking or do i have a problem