I've downloaded and installed the Eclipse in my Linux, and it looks nice. I've also downloaded the CDT C compiler, and after looking over the Eclipse SDK help page I think I installed CDT. I believe I created a project using the CDT tar.gz file. Now the CDT files are in the package view to the left, but when I try to run CDT as and application it says that it can't find JRE "null". Where's the CDT instruction manual telling me how to install it?! All the examples I found at the Eclipse SDK help page were Java examples. I'm learning both C programming and Linux, and this seems like rocket science. Actually I'm a mechanical engineer who likes rockets. This seems to be harder than rocket science.