Anything that uses Flash Player must be closed during the installation; this includes MSN.
Check with the Task Manager's Processes tab if it is still running in the background; end the process if it is.
Although I had closed MSN and it was no longer shown as a running application, the msn.exe was still running when I went to the Process Tab. When I stopped the msn.exe process, the installation worked flawlessly. I went back to ESPN to view the video that I wanted to see and it also played without any further issues. Thank you very much for this information. I have had this problem for quite awhile but finally got so frustrated that I decided to contact the forum. I had no idea that even if an application was ended, a process could still be running. Thanks again!!