Error - The attempted operation is prohibited because it exceeds the list view threshold enforced by the administrator.

Hi,

I have a doc lib in SharePoint 2010 with over 8K docs in it. I am trying to delete a document from this doc lib via Biztok. The error I get is:

"The attempted operation is prohibited because it exceeds the list view threshold enforced by the administrator."

I have increased list threshold from Central Admin to 10K. Still I am getting the same error. What could be the reason?