stupid request re: dilbert comic

[Slow Play Ray]

i am looking for a particular dilbert comic, where the boss is telling dilbert how he just found out light travels faster than sound, therefore he sees his lips moving before he hears him. dilbert ignores him for a while, and the boss is thinking "he mustn't have heard me yet"

i googled the crap out of it to no avail, so i am turning to the collective mind of OOT - anyone have it, a link to it, or know where to find it?

[Inso0]

How long ago was this?