Hey, I have been trying to replace gcc 4.4.1 (which is already installed in my machine) with its earlier version 3.4.6. But I am not able to do it. I followed the steps as given in this website: http://ubuntuforums.org/showthread.php?t=124606 though I am able to install gg 3.4.6 i.e. it gives that gcc 3.4.6 is the latest verision, but when I type "gcc -v" it still gives version as 4.4.1 even though i have used the export CC command. When i removed the newer version, anticipating that, after this it might consider the older version, it doesn't recognize gcc command itself. Thanking you Regards Animesh Agarwal ID: 200601147 Ph. No: 9374812494