That may mean that SP1 includes this hotfix, which is usually used to
solve such problems:
http://support.microsoft.com/default.aspx/kb/941090
Although it's labelled as for mail stuck in the Outbox, it also works in
other folders.
"emprof" <emprof@xxxxxx> wrote in message
news

A8EAAD6-82E9-49B5-952C-AEE990C8D5FD@xxxxxx
Quote:
> 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:
> Quote:
>> 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