For some strange reason, adobe 10.2 has issues when you try to use it on any system running nvidia’s optimus technology. Apparently this is a well known issue as can be see at the nvidia forums over here.
Fortunately, it can be fixed very easily by installing Flash 10.1. The link given on the forums didn’t work for me. But I could get it directly from adobe’s website using this link:
The one I downloaded was:
and I installed the file named:
in the archive
i.e. install flash 10.1