ok, i admit im kinda newb when it comes to stuff like this.. so its usually easiest if i just ask someone directly than go hunting for answers on my own. that usually results in me digging the troubleshooting hole so much deeper. under the about my mac i opened the memory section and this showed up, does that mean only one of them is being used, or what does that mean since it says blank? any help or input would be appreciated. if you need any info let me know. and please let me know if that link doesnt work Thanks !!