The Messenger Support Space has a new entry on MSN Messenger error 80048820:
Many of you have commented about having problems with MSN Messenger error number 80048820. We are aware of this issue and looking into what are all the possible scenarios to provide a complete list of possible resolutions.
If you’re been plagued by this error since upgrading to MSN Messenger 7.5, go check out the post and follow the steps.
Unfortunately, just looking at the comments you can see there are still many having this problem, so there must be some more scenarios which cause this error.
Original articles: Solving error 80048820 and Another fix for 80048820.
I am getting 80048820 and 80048439 erro messages. Tried numerous times to get help from microsoft, they are absolutely useless and unhelpfull, providing less than what is a common knowledge and calling it “technical assistance”
I followed the steps in your instructions and it is not working.
Another massage appears when accessing the hotmail address relates to POSTDATA transmission.
Please help,