It appears the Galaxy S with Android 2.1 has major bugs with Unity games. The only way to solve this problem is to update to 2.2. Most Unity Developers don't even include the Galaxy S as a handset on the android market because of this.
answered Jan 28 '11 at 12:19 PM
it might be due to a bug or heavy load in first scene that causes this. i had this problem in iphone and it was my code's fault but i don't remember what was the problem.
answered Mar 15 '11 at 01:37 PM