Problem installing software

[Ariya Subasingha]

Dear Kubuntu readers,
 
I have a problem installing software. The details are as follows. Can any one help me?
 I am writing this to get your guidance to install a software package

I was trying to install open Office.org Darabase. When I selected the software from the list and clicked install and apply I got the following message 

"Waiting for Package manger Lock Cannot get exclusive lock on the package backend.. Please close any other legacy packaging tools that may be open ( There was no other package opend at that time)". 

When I checked the details  I got the following message>
"dpkg was interrupted you must manually run dpkg--configure-a" to correct the problem

I can't imagine how to give the command to run dpkg--configure-a. In which dialog box do I write this command?
Please help me. I tried to install some other software and I got the same messages.
 
Thank you
Ariya
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