Every time I open my Gmail app it force closes. This is the message I get:
The application Gmail( process com.android.gmail) has stopped unexpectedly. Please try again.)
If it helps I am using the Samsung Galaxy S II running Android 2.3.
Go to Settings>Applications>Manage Applications
, then find the Gmail app in the 'All' tab. Click 'Force Stop' and 'Clear Data'. Restart the app and see if the error occurs again.