HTTP 400 error at SBS 2003 Backup Console

I am supporting an SBS 2003 Server. Our on-site backups uses the "Small Business Server Backup" that is built into SBS 2003 and managed from the "Manage Small Business Server Backup" Screen which is in the SBS Server Management.
When I attempt to access the "Manage Small Business Server Backup" screen I get an HTTP 400 error. I am still able to manage and configure backups and the backups do appear to be working, but I don't like the fact that I cannot see the opening page to this and would like to fix it.
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Cris HannaSr IT Support EngineerCommented:
How much free space on the C:\
Shreedhar EtteCommented:

Refer this:

Hope this helps,

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summit_pcguyAuthor Commented:
Space on C drive wa down to a few hundred megabytes last week until we did some cleaning out to get around 1GB free.
summit_pcguyAuthor Commented:
Thanks Shreedhar. HTTP value was set to server IP address.
summit_pcguyAuthor Commented:
Solution was right on the mark, as usual.
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