Dear Pedro me is an adress in memory not number of sprite channel, you should use me.spriteNum function. on mouseUp me set the fgcolor of sprite me.spriteNum = 156 end other way is: on mouseUp set the fgcolor of sprite (the currentSpriteNum) = 156 end This memory address is f.e. equal <offspring "" 5 98fdc28> as you noticed in error message. Saimon [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/LUJ/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]) Lingo-L is for learning and helping with programming Lingo. Thanks!]