I just updated to Android SDK Tools r20, and try to create avd base on android 4.1 and WXGA, but I got error message when I start AVD.
config.ini:
hw.mai
try to update the ADT&SDK .
if that doesn't help , try to do total uninstallation of the ADT&SDK of android . even delete the ".android" folder , and in the end install them again.