Are all of these Wi-Fi sources secured, or have you tried any Open sources (Starbucks, McDonald's, etc)?
What is the signal strength like for these sources? Rather than trusting the little bars on the Wi-Fi icon you could use an app like SignalCheck Lite
http://market.android.com/details?id...ignalchecklite or Wifi Analyzer
http://market.android.com/details?id....wifi.analyzer to get a precise measurement.
When you say that it won't connect, what do you mean exactly? Does it attempt to obtain an IP address, fail, and then show 'Saved'?
Have you tried booting into Safe mode? Or a complete power off?
Did it ever work?
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