Deleting all messages at once

Howq to delete all my messages at once

There isn't a way, unless you're deleting your entire account, I don't think. (I'm not 100% sure that function—the ability to delete all of your Talk posts when you delete your account—is, well, fully functional.)

I thought the OP might be asking about Profile messages.

>3 2wonderY: Ah, then the answer to that would be no... you'd have to delete them 1-by-1, I believe.