Android app fails authentication if Dropbox app isn't installed...

Alright...I figured it out.  Silly me.  I had two Dropbox activity declarations in my manifest.  I had the "old" original entry with my production app key (from v1 days) and I had the new v2 api entry with a different app key that I use for testing.  Once I removed the old activity entry and changed the key on the new activity entry, everything worked properly.  My Dropbox activities in my manifest as they were before the fix are below for reference.

<!-- Old v1 Activity -->
<activity 
	android:name="com.dropbox.client2.android.AuthActivity"
	android:launchMode="singleTask"
	android:configChanges="orientation|keyboard">
	<intent-filter>
		<!-- Change this to be db- followed by your app key -->
		<data android:scheme="db-xxxxxxxxxx(CorrectKey)" />
		<action android:name="android.intent.action.VIEW" />
		<category android:name="android.intent.category.BROWSABLE"/>
		<category android:name="android.intent.category.DEFAULT" />
	</intent-filter>
</activity>
<!--New v2 Activity -->
<activity
	android:name="com.dropbox.core.android.AuthActivity"
	android:configChanges="orientation|keyboard"
	android:launchMode="singleTask">
	<intent-filter>
		<!-- Change this to be db- followed by your app key -->
		<data android:scheme="db-yyyyyyyyyyyyy(WrongKey)" />
		<action android:name="android.intent.action.VIEW" />
		<category android:name="android.intent.category.BROWSABLE" />
		<category android:name="android.intent.category.DEFAULT" />
	</intent-filter>
</activity>

Thanks for your help and patience in getting me pointed in the right direction.