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an "X" in front of you Avatar name?
I'm happily grumpy! 
BTW, just so you won't be thought of as a ludite, the "X" is actually infront of my old 'screen name'. Most 'Avatars' don't have 'names'. Just hang in there, all this high tech stuff is hard at first, but one day, I can see you maintaining a whole network of PCs and Macs! I have faith in your inate abilities!
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the Shannon-Nyquist sampling theorem
Is that the one where a random sampling of Nyquil bottles from the shelves of several pharmacies near Shannon, Ireland was discovered in a tomb in Egypt recently?! 
BTW, have you tried Ask.com? ( Used to be Asl Jeeves, I think... )