Should I be getting electric shocks from the rear USB ports?

....of course I shouldn't but on occasion I do.
Also, 3 of the 4 rear USB connectors either don't work, or come up with a "USB Device not recognized" error. NOTE: I have no front USB ports attached.
Do I have a grouding problem (thats only manifested after 2 months of trouble free use)?
And/Or is there a software problem somewhere that has caused these USB ports not to work reliably?
Any help or advice greatly appreciated.
RIG:
A64 3500+ (Newcastle 939)
K8N Neo 2 Platinum
1Gb Crucial Ballistix 3200
Maxtor 200Gb Sata HDD
NEC ND3500A DVD writer
Ati 9800 pro
Antec Smartblue 350W PSU
Wireless PCI Adaptor
Thanks in advance
CK

Quote
Originally posted by FastEddie
Take a look at the rear i/o shield, from inside your case, to see if one of those small grounding tabs on the shield didn't get pushed into one of the onboard usb headers.
I'll take a look when I return home...I suspect thats whats happening.
Supershanks....I don't have ANY of the front USB ports connected at all....I couldn't be bothered connecting them after I RMA'd my first Neo 2 due to failure to post.
mrpiercer.....the PC is plugged into a 4way extension lead that is plugged into the wall socket. Its a new house (8 years old) so I guess they have earthed all the wall sockets....
Thanks
CK

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I am using the supplied/genuine charger. The MBP is less than a week old and never dropped or abused.
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I very recently purchased a MacBook. I had not been using it long before I realized that it is not uncommon to get an electric shock when I touch areas other than the keyboard. Now via Google and this Discussion Board I find that the shocks are a known issue and that Dell also has this problem with some of its aluminum constructed laptops and that MacBook Pro users also receive shocks. Assurances are given that the shocks do not hurt the computer, but what about the user?
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