> My Intel i7 has a 64bitnative architecture. 64bit is officially supported in Ubuntu and Wine packages. > > I have used 64bit for 4 years now, and alla the main compatibility bugs have been fixed more than 3 years ago. > > 64bit is more efficient than 32 while encoding videos or rendering graphics, and supports more C and C++ optimizations, which improves the overall system speed and reactivity. > > So I see no reason why I should use a 32bit OS. I won't argue with anyone on that point. And you would be correct to do so ;) Martin seems to be ignoring all of the benefits of 64bit CPUs, and only considering the RAM side of things; > In view of this its worth pointing out that, unless you have more than > 4GB of RAM installed, there should be no need to run a 64 bit OS. As a matter of FACT - Your above statement is incorrect. Using 64bit has more implications than just being able to use 4+gig of ram. Sure, 64bit tends to use more memory, but using 64bit offers (significantly) better performance being as you can directly use 64bit data structures / 64bit registers / address spaces. I'd also like to point out that telling someone with some /lib32 issues, to install a 32bit OS is not a solution. cheerz