...And I'm not sure why.

I had been driving the car for maybe 8 minutes, after it had been sitting for maybe an hour. Came on right after I accelerated after being stopped for a few minutes. The temperature gauge didn't budge at all, nor did the car seem to run any differently.

I checked the overflow tank when I arrived back home - letting it sit for a couple hours, and it appears to be 'full enough' to me.

Searched the forums a bit, but didn't find much in the way of concrete troubleshooting steps. Thermostat? Relay? Battery? Those all don't seem like they'd be throwing the 'coolant low' light, do they?

Tried letting the car run for a while in the garage (with the garage door open, mind you) and letting it warm up to the median temperature, but the light didn't come back on.

Oh, and I don't see any fluids leaking anywhere.

Any ideas?

Thanks,
Chris