Ok,
I don't know why, but I've seen this question been asked many times, but none of the answers seem to be helpful, yet the problem is quite obvious, because I verified it on several computers.
Ctrl+C does NOT kill a running program in terminal (Ubuntu v10) even though it's supposed to. I wonder if anyone can actually point a solution that actually works.

So far I've tried Ctrl+, Ctrl+SysRq+K, and much more - nothing works!

The only thing that did work, sort of, is Ctrl+Z, but it doesn't actually kill/exit the program, but simply puts it in a background and then you still have to do kill %1 to actually kill it.

Thanks!