The first thing to try is to uninstall and reinstall Java.
1. Enter Windows key + R, which will open the Run dialog box.
2. Type
APPWIZ.CPL into the dialog box and click OK.
3. Wait for the Programs and Features (Vista and 7) or Add and Remove Program (XP) page to completely load.
4. Scroll down looking for any JAVA installations.
5. Select and remove any and all JAVA installations.
6. Restart computer if necessary.
7. Follow this link to install the latest version of JAVA:
http://www.java.com/en/download/index.jsp8. Click "Free Java Download" and download Java.
9. Install Java and restart computer if necessary.
Note: If you have difficulty downloading and installing Java, then try and use Internet Explorer to install Java.
Hopefully this fixes your problem. If it doesn't, then please post back.
Good luck and thanks for using FixYa.