Apple After updating to 10.2, iTunes does not recognize iPod Touch

[AC/DS]

How come my iPod Touch 4g is not recognized at all? I've just updated iTunes to 10.2 and now I cannot sync my apps, add movies to my video player etc. I am really shocked. Of course, the iPod is JB-oken but could it be the reason?
Any info greatly appreciated.
I've tried re-connecting the iPod, re-installing iTunes, stopping/restarting the Apple mobile service in control panel - nothing helps.

EDIT: Never mind that. I had to downgrade iTunes to the previous version, which solved my problem.

 

[Langin]

So jailbreak= no new iTunes?

 

[AC/DS]

So jailbreak= no new iTunes?

Frankly, I don't know for sure. I've just described what happened to me when I updated iTunes to 10.2 As I was desperate for help, I've searched the web for answers and I found out that SIMILAR things happened to people when updating iTunes, although to different versions (i.e. 9 to 10). I have no idea what is the cause of this strange behavior or why it only affects certain iPods... I might wait for the next iTunes update and see what happens then.