I got into my '05 Civic EX today started it up, got out to load some stuff
(let it warm up a little, too), got back in, and drove off to work.  About
a mile down the road was the first time I actually glanced down at the
instrument cluster.  WTF!  Tach and Speedo at 0.  I was going 30mph
(roughly).

Never seen that before.  So, I turned the key off and then back on (yes,
while I was driving and no I didn't engage the starter).  Gauges came back
on.

That was real wierd...never seen that in any of my Hondas...any idea why it
happened?  I don't know if it was that way from the time I started it up
since I didn't look at the instruments.

Any idea what would cause this?