Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Al my alu devices also do, when plugged in a not grounded powerconnection. I live in house from 1930 and it only has grounded powerconnections in the (renovated) kitchen. The european short-powerplug isn't grounded, but the European long cord powerplug is.
 
Ummm... No, and no.

The non-grounded two blade plug is pretty rare in the parts of the US I've lived. I've only seen them in older buildings. Anything built or renovated in the past forty years has the three prong grounded plug.

The second comment is also completely wrong. Thanks for trying to help though.

okay my bad :)
 
never experienced this issue in my life. and i've owned A LOT of apple products.

You never, me ever I also owned a lot of stuff and I worked for 2 years in an Apple Premium Reseller.
All Aluminium Apple devices really do (when not grounded).
Were not talking about a very heavy electric shock here, maybe you're not sensitive enough, or after all those years don't notice it.
 
For you who experience the tingling:
Try to "rub" the area next to the trackpad with a bit of pressure. The tingling goes away :p. I guess you take away the excess energy to yourself or something. By applying more pressure your making the conductivity stronger...
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.