hi there,

I'll be happy to assist you.

I recommend that you scan your computer for malware or spyware infection. For more info, please read the article: Recent reports of Account hijacks found at:

http://windowslivehelp.com/solutions/safety/archive/2009/04/29/recent-reports-of-account-hijacks.aspx

In addition, you could also check your account’s signature and vacation reply if they were altered.

To check your signature:

1. In the upper-right corner of the Windows Live Hotmail home page, click Options, and then click More options.
2. Under Customize your mail, click Personal e-mail signature.
3. Delete your signature in the box, and then click Save.

To check your vacation reply:

1. In the upper-right corner of the Windows Live Hotmail home page, click Options, and then click More options.
2. Under Manage your account, click Send automated vacation replies.
3. Click Send vacation replies to people who e-mail you.
4. Delete the message in the text box, and then click Save.

source: http://windowslivehelp.com

Hope it will help you.

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Good Luck!

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