ITouch not recognized on any PC anymore - Defect USB port the cause?

Question

Hey guys,
I'm posting here because I've been to the closest Genius Bar twice and they couldn't even tell me what was my problem. I'm kinda desperate right now...
The same problem occurred on my three iPod Touch first gen so far; for some reason they simply stop being recognized by ANY computers. I try different cables, reset, recovery mode, reinstall iTunes, restart the AMDS, update every hardware drivers of my PC... The only thing I haven't done right now is reformatting my PC, which won't happen.
I went to the Apple's Genius Bar and they couldn't find my problem; it wasn't the pins, the cable nor an application problem (I have latest firmware 2.1 by the way). So they gave me another Touch which was also defect. Yesterday, I return and they gave me a third one which worked correctly at the store and on my job's computer.
However, when I got back home I connect it on my own PC (using the same cable et setup) and for some reason, now the same problem reappeared. Doesn't matter what I try, it is not recognized anywhere anymore. When I connect it to a PC, the recharge window never shows; it continue working normally though.
As I said, I updated every hardware drivers and I'm a little tired of going to the store everyday. Could it be caused by a defect USB port? Anyone ever seen something like this?
Some help would be really appreciate.
Thanks for your time and support.
Frank

Answer 1

I been having the same problem as you, except I haven't tried it in a different computer. For a while, iTunes is recognizing my iTouch as a digital canon camera. Now its not recognizing it as anything.
This problem started started when I downloaded the iTouch 2.0.2 update. When iTunes is open it asked me to update. When I click yes to update the iTunes, it only updates the safari and it won't update the iTunes. Apple support by phone was not able to help me fix this problem. The tech said that the USB port hardware needs to be updated on my computer. It took me almost 5 hours to find out this could be the solution to my problem.
Now, I'm trying to find the USB update thru Microsoft and I'm having difficult time finding this too. I had this iTouch for only 3 months and cost me almost $400 and I'm not able to use it. I have at least 14GB available in this iTouch and I don't know If I will be able to use all this space, it I dont find the solution to this problem.
If you find the solution to this problem, PLEASE reply to this post. If anyone else reading this, your answers are welcome and appreciated. If I cant find a solution to this problem, I will never buy an Apple product again.