This isn't the only Logitech model that has the issue, it's not necessarily a failure inside the device, could be the cable as well.
Poor quality control would be the answer to that. Any USB device can suffer this same issue if the cable (connector on either end) doesn't make full contact. Which is why you get a detection (power connection) but failure to load the device.
If you ever google Logitech Headset's, and tag in failure/not recognized, you'll see so many people having the same issue over the years and logitech's inability to even assist. They MAY honor a warranty on it, but (as many have) you'll get a refurb that may suffer the same fate.
These are what I recommend:http://www.amazon.com/Plantronics-GameCom-780-Surround-Headset/dp/B006ZS5ATM/ref=sr_1_8?ie=UTF8&qid=1353345372&sr=8-8&keywords=sennheiser+headset
They are not the ones I own but plantronics are solid. I personally own Sennheiser's, but not a headset. I've separated from that so I could get a good pair of Senn's headphones (highest range sound you'll basically ever heard under 4-500$'s and just a USB mic to pair it). The best Senn's you can get start at ~180$ unfortunately, but good god are their headphones comfortable and full of bass. The reason I asked if you were a gamer is direction noise is important, and they do a wonderful job.
The plantronics are not at ALL bad either and guarantee will outperform quality (and longevity wise) the logitech's. If they are out of your price range, let me know and I'll see what else I can find.
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