What is it exactly that you're trying to open from System Preferences? Are you referring to "Security & Privacy"? What are you attempting to change? We can't read your mind so you need to explain things better before we can offer to help.
And this is with your Admin Account?
Tygrz you been on a pretty steep learning curve this past few weeks eh mate?
Probably more of a "relearning'' curve!! Need to consume more fish & rice. More fish & rice!!
Try OWC for memory, they may have it.
Well, you're in the right place for that! I spent a great 8 years living and working there for the US Govt back some years ago. Would have loved to stay there but it was just too expensive. Can't imagine it's any less expensive now. ;D
I still say OWC may have something...although they couldn't match my greyware either.Lol... I was making reference to MY memory... the one in the crusty ol' cabinet atop my shoulders ;P