Hello,
Please check if you have installed the latest version of java (http://www.java.com). Further delete your java temporary files. If you are playing using browser, please ensure that your browser is not blocking java. Also check if your graphic card drivers are up to date. If the problem still persist then run the diagnostic tool by using the following link and send the generated report at support for further investigation of the issue.
http://dinostorm.com/en/diagnosis-tool
Regards,
Orrire.