Receiving an Error message 0x800CCC0D

I was using Windows firewall and decided to use Trend micro. But when I opened the Outlook Express I got the error message: "Error Number 0x800CCC0D". My system is brand new with Windows XP, 512 RAM and 1.8 GB Processor. I am using IE 7 and I am sure the problem is not due to IE 7. I restarted Windows, disabled firewall and tried other things to my best but the error persists.
If anyone knows about the reason for this error then please help me out.
