Mac OS does not open TopCoder Arena to open

Question

I\'m running Mac OX 10.7.4 with the latest version of Java. I wanted to access TopCoder\'s Competition Arena, so I downloaded the .jnlp and tried to open it. However, I keep get

Answer 1

I run javaws -viewer and deleted all instances of TC there. Running the jnlp afterwards worked.

The fix was suggested by jthread on TopCoder here