okay so I know this makes me sound really retarded, but if ANYONE, ANYWHERE knows how to change the text message alert tone thingy, then PLEASE TELL ME!!! I'm pretty sure you can actually change it, cos I'm sure I remember choosing the one I've got on there now when I first got the phone. but I lost the manual and I can't remember how I changed it!

I promise, its much harder than you'd think. I've been thru every option on the menu and I'm DYING to change the tone, its driving me MENTAL!!!!

please? anyone know anything?