New Post: Client tries to install Update, which is deleted in WPP-Console

Hello

We have deleted an "old" Update in the WPP Console, but now it still appears for Installation on every Client. Does anyone have an idea, how to solve this Problem?

Here some more details:
We created and approved an Update called "Adobe Reader XI MUI".
After some time we found out, that this Version of Adobe Reader causes Problems in another application.
So we decided to create an new Update called "Adobe Reader 11". Just the German Version.
Unfortunately we have just deleted the old "Adobe Reader XI MUI" from the WPP Console and have forgotten to define the new "Adobe Reader 11" as superwise.
The Installation of the new one is no Problem, but the old one still appears and Fails.

Hope you understand my English and have any idea.
Thanks a lot.
Isarf