Although it was never mentioned by Microsoft during the SP1 beta
testing phase, it makes sense that SP1 would incorporate all
outstanding hotfixes including the one that was issued specifically
for that problem:
http://support.microsoft.com/kb/941090
--
Gary VanderMolen, MS-MVP (WLMail)
"emprof" <(E-Mail Removed)> wrote in message news

A8EAAD6-82E9-49B5-952C-(E-Mail Removed)...
> Evidently this problem is solved with the installation of the new Vista
> Service Pack 1. I had the same problem, likely caused by my virus software.
> My deleted folder would not automatically delete files there after closing
> Windows Mail even though this feature was properly checked. Furthermore, I
> could only delete a few messages in the delete folder manually before getting
> the dreaded error message. I was strongly considering a change to Windows
> Live Mail, when the new Vista Service Pack 1 came out. Also, I was getting
> about 20 or more junk mail files every day despite using message rules for
> certain words before the installation, now I might get only 1. It's scary!
> The change after installation and restart was amazing. After installation and
> restart, I tested Windows Mail by trying to delete over 300 messages in my
> delete folder at one time. It worked! I also tested the automatic feature to
> delete messages in the delete folder upon closing Windows Mail. That worked,
> too! Thanks, Microsoft! Could it be that my Internet Service provider had
> something to do with this as well? I don't know.
> --
> emprof
>
>
> "gopal" wrote:
>
>> HI,
>> I cant delete the deleted items from the deleted folder.The message
>> UNKNOWN ERROR COMES UP.Any ideas how to deal with it?????Gopal