I had to reinstall my OS on my laptop. I sync with iTunes on my laptop. So, when I download and install a new iTunes, and then connect the iPad2, it won't sync unless it erases everything in the iPad2 and copies over iTunes - which has very little in it.
This iTunes restriction on some named library is an incredibly irritating hassle.
Again, Apple does not seem to understand the term "synchronization" is a bidirectional term!
So, how do I resolve this? How do I get iTunes to properly recognize my existing iPad2 and its library? And then how do I upload the Apps on the iPad to iTunes?