The relatively simple installtion of Eclipse software (an IDE for Java Programming) was causing problems for me. After some debugging it came to my consideration that I had a previous version of the JDK suite already installed. Eclipse application could not find the JVM from the Java SE 6 update 27 toolkit which I had recently installed for Eclipse.
I had to change the order of directories in the PATH Environment to reflect the latest Java installation and bingo!! Eclipse installation was successful.
Just thought this might be helpful for any of you trying to install and set up Eclipse. !!!