Here is a response given to another member with what appears to be the same problem from April. If it works for you credit should be given to contributor Lisa-maree.
"Ladytron
Topic Starter
Newbie
Posts: 2
Computer: Specs
Experience: Familiar
OS: Unknown
Re: Unable to load games on Shockwave.com.
« Reply #1 on: April 26, 2012, 05:39:04 AM »
I'm finally able to load games on Shockwave! Thank you Lisa_Maree!!!
Here's what I did:
I downloaded/installed Mozilla Firefox browser. Then I uninstalled both Adobe Flash Player, and Shockwave Flash Player. Then I restarted my computer, and re-installed both Players. Then opened the Firefox browser, went to Shockwave.com, and it said I needed to install both Players (for some reason). So, I let it install the Players again. After that, I was able to load the game I wanted.
Thank you again, Lisa. I truly appreciate it."
My recommendation should you need to attempt this suggestion would be to install another browser such as Opera or Mozilla prior to following the suggestion. truenorth