Low signal strength on MacBook Pro Penryn

[Sharyn]

I am receiving a low signal strength on my new MacBook Pro and I don't understand why. My old Macbook which is right next to the new MacBook Pro is receiving a better signal strength than the new MacBook Pro. Any ideas as to why and what I can do to improve the signal strength on the new MacBook Pro?

 

[squeeks]

yes, the macbook gets better signal because its plastic and wireless signals go through plastic much better than aluminum

 

[Fundillo]

aluminum case

 

[theLimit]

This has been the case for (at least 5) years. My original Aluminum PowerBook got terrible reception compared to plastic laptops. The metal case really kills the range.