Screen position out of view frustum (444714)

Ok guys, I love Unity3D but really sometimes I believe it has a random behaviour! … I was just working with my prefab and for whatever reason I started receiving this error message at run-time which involves the script Graphics.cs which I never touched. Any suggestion!?

Screen position out of view frustum (screen pos 270.000000, 287.000000) (Camera rect 0 0 389 292)
UnityEngine.SendMouseEvents:smile:oSendMouseEvents()

thks.
G

Thanks ViperCode!

Ahh! It’s started doing it again!