Can't see Account Name on Activity Report

Can't see Account Name on Activity Report

Hi,

I have created two different types of Activity Reports:

1. sorted out according to: a) Industry b) Account Name c) Project Name (own created name)
2. sorted according to: a) Account Owner b) Account Name c) Project Name (own created name)

My Problem lies in report number 2.

It shows me the column called "Account Name" however none of the fields are filled in. In other words I have an empty column called Account Name without showing me any names.

How can I get all these names back on my report? It works on report 1, but not on report 2.

Any ideas?

Your help is very much appreciated.

Stephan