What happens when you click "Next"?
Nothing. It's stuck. I got to do force quit from Activity Monitor.
Can you try to install the latest version of Java so that ColdFusion will not use the version which ship with it? After that, try to uninstall ColdFusion 10 and then let us know the status of this issue.
I found the solution which is the 1.6 jdk update has a problem with redrawing. This problem also happens with Coldfusion 9 installation file. In order to check your JDK has the right update, use this command below from your terminal:
/usr/libexec/java_home -v 1.6 -exec java -version
If you got M4508, the update has a problem. Download the correct update from the Apple site using this following link: http://support.apple.com/kb/DL1572