Mine suddenly went out on me. Was working great, hadn't used it in a while, bought a PowerPak and returned to my console with new-found passion. But the PowerPak wouldn't work... Twice out of ~50 attempts at reseating it booted. I assumed it was the PowerPak as normal games would boot just fine. In the past day or so though it's started taking several re-seatings to get normal games to work, and tonight, nothing. Over half an hour of reseating the cart to no avail, multiple games tried, cleaned both the connector and the carts, still nothing.
Any ideas?