iTunes doesn't detect iPad

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[iPhone, iPad, or iPod touch: Device not recognized in iTunes for Windows|http://support.apple.com/kb/TS1495]

I have the same problem. Brand new iPad. I've connected it to my new iMac and also to my new PC. I have iTunes (latest verson) on both. Neither will detect my iPad. HELP!! This is very disappointing, especially for such an expensive gift.

I start a different thread also some days before because my iPad is detected by iTunes but can not be identified, so i am not able to use it as well.
But the very disapoting point is that this issue seams to be something which not exists for apple, also allready i know a lot of people having this trouble.

I like the iPad very much and i want to use it in the way it is made for, but because of the issue with connecting iTunes and my iPad i can´t.

I had this problem myself. My Windows XP home PC was affected. I tried again at work and had the same problem. At this point I checked my anti-virus logs and noted that during the installation process the file DifXInstall32.exe had been detected as corrupt. I managed to resolve things as follows:

Completely uninstall iTunes following the instructions at http://support.apple.com/kb/ht1925, then uninstalled my antivirus software. After rebooting, I cleared up folders according to the details on the above page. I found I was unable to delete the Bonjour folder - something else must have installed Bonjour before I installed iTunes. I removed Bonjour after following the instructions here: http://arai.wordpress.com/2008/02/11/completly-uninstall-and-remove-bonjour-serv ice-and-files-mdnsresponderexe-and-mdnsnspdll/

After this, I cleared my temporary internet files, and re-downloaded iTunes, and went through the installation process again. This time, my iPad was detected.

I think it most likely that my antivirus was the cause of the problem, as I experienced the same thing at work where we use the same av programme.

Hope this helps other people having the same annoying problem. Particularly annoying if you haven't activated your iPad yet!