I bought the 2.9 ghz 8gb ram with 512 hd version. When I run sights like more or android central the pages load slow. I'm also starting to get the beachball a lot. Is this because of the 8gb of ram, or is there something else going on. Was thinking of upgrading to the 3.1 or 3.3 ghz with 16 gb of ram, but all I do is email, web browsing, run some apps like reeder. I do no video editing or things like that so I thought this unit would be plenty for my needs. Any suggestions will be appreciated.