It is a weird coincidence that the day my wife's new MacBook Air appeared in our house was the day Windows 7 started acting up on my "original Air" the Lenovo X Series.
I went through about two years of Vista very happy. Few crashes, no problems. Windows 7 has been great, until last week. Then inexplicably I was unable to access the Internet from most programs other than a browser--Adobe Air programs like Yammer, Evernote etc couldn't connect.
I tried everything, trolling through Google search results based on phrases like "Windows 7 won't allow programs to connect" but found nothing that worked. Finally I resorted to using my Lenovo Rescue and Recovery program to roll-back my machine to a month or more ago. Now it's working fine.
Any ideas anyone as to what happened?