I have downloaded Blender 2.68 from official website. After extracting the zipped file,earlier I was able to run it by simply clicking the 'blender' executable file in the folder.
But now, whenever I try to run it by clicking the executable file. It gives error as:
Could not display "/home/anuj/blender-2.68a-linux-glibc211-x86_64/blender". There is no application installed for executable files. Do you want to search for an application to open this file?