Odd hissing noise when inserting PCMCIA card

I'm testing a wireless broadband card (Sierra AC580), and I've encountered a very strange issue. When I insert the PCMCIA card into its slot, I get a loud hissing noise from the left speaker. I can reduce the volume of the noise by moving the card side to side, and sometimes I can transfer it from the left to the right speaker.
Is this some kind of interference issue between the speakers and the cell signal coming from the card? Has anyone else encountered this? The speaker volume has no effect on the volume of the sound. Neither does the mute button (F3).

I have the same sound - my MBP is only a week old as well... If you are not happy with it or are having further problems with it reading cd's or dvd'd then you should take it back to your local apple store.
I know of two other MBP users and they have the same thing... as said on other posts "not very pleasing to the ear"...

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The 2011 iMacs were originally shipped with OSX 10.6.6 Snow Leopard and to my knowledge the Retail Snow Leopard DVDs are version 10.6.3 and thus too "old" for your iMac.
http://support.apple.com/kb/HT1159
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Stefan

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Hi Stieffers,
Welcome to the Lenovo forum
I know just what you mean about the PC card slot... it is *stiff* when new. And the connector may be ever so slightly mis-aligned with the slot. I had the same problem with a different (eSATA) PC Card, I thought I was going crazy! Anyway: the slot you want is the bottom one. Try (gently) pulling up (or possibly pushing down) on the end of your PC Card as you insert it. Don't break anything... but I'm pretty sure you'll be able to insert it. It will get easier on subsequent insertions.
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Results of Your Ideal Business-Class Laptop survey, concluded 2009-07-29.
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Odd hissing noise when inserting PCMCIA card

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