One or more parameter values are not valid

[Big Dave]

I am getting this error message:

"Please save the task order by clicking Save Task Order on the Actions
menu in the "Tasks" folder. The view must not be filtered or grouped
for Save Task Order to be available. Could not complete the operation.
One or more parameter values are not valid"

I have seen alot of articles about choosing Actions/Save Sort Order and
the microsoft kb article that has 1 of 3 solutions that being the
first.

I don't want to delete my email.

Is there not a solution for this?

I have spent 2 hours today searching a solution and nothing has worked.

I appreciate your help.

 

[Big Dave]

Anyone able to help me with this?

 

[Big Dave]

Well I finally followed the recommendation of the Microsoft KB 197036
and deleted my mailbox from the server. Resolutions 1 and 2 did not
work for me. First, though I copied everything I didn't want to lose
over to a local pst file. then I deleted and recreated the mailbox on
the server and now the tasks work great. Seemed to speed everything
up. I have been using the same exchange mailbox for probably 5 years.

Anyway, I am really disappointed that I had to resort to this method.
There should be a fix. I found alot of postings about the same and
very few solutions, none of which worked for me except the one I tried