QUOTE (gamehead200 @ Jul 26 2003, 09:14 PM)
I blew into it for a bit, and eventually, it started to work again!

So...FREE NES!
Moisture from your breath (if you didn't use compressed air) will cause more damage to the connectors inside the NES. I used to repair NES systems when I was in high school and corrosion from condensation was the cause of failure for most of the systems.
Not that you're likely to be concerned enough to fix it (with emulators being readily available) but if you do obtain the tool to open the NES you can clean the contacts with fine sand paper (or a ladies emory board) and some rubbing alcohol on a q-tip. If you can't open it, lightly moisten a strong paper towel (Bounty) with rubbing alcohol and push it into the cartridge slot with a thin metallic tool (like a spatula).