Unsupported key

Hi, I get a few messages when I test some keys on my laptop.

The first is when I hit the ^ key (just right of P, left of $) on my French
keyboard. Message is :
The key you just pressed is not recognized by SDL. To help get this fixed,
please report this to the SDL mailing list X11 KeyCode 0
(-8), X11 KeySym 0x0 ((null)).
This key’s a dead key, used for ? and ? characters. I’ll investigate more
tomorrow on my desktop with multiple OS if needed.

The second is when I hit the “browser” multimedia key
The key you just pressed is not recognized by SDL. To help get this fixed,
please report this to the SDL mailing list X11 KeyCode 156
(148), X11 KeySym 0x1008FF41 (XF86Launch1)

Laptop’s an acer travelmate 5730 with french keyboard, running ubuntu 10.04
LTS.

I don’t really need a fix for this, just sending feedback, least I can do
for such great software.
But if there’s a way to deactivate the message without recompiling SDL I’ll
take it.