i downloaded the installer and sdk for 2.2.1 on windows 7 (x64) my computer more than meets the requirements. i installed Oracle JDK from the link on the install page. and when i try to run the installer it gives me an error message saying “Cannot execute Java even if it was installed. Check environment variables or Java version (over 1.6) please.” i dont really get why its saying i dont have java because i already have the normal java installed and the JDK the install page told me to install. anyway yuou guys can help me out? 

thanks, David