No HD output on PS3!

[sahoward]

Hi guys, longtime lurker first time poster. I've had my PS3 since February and absolutely love it. I've amassed a collection of about 50 Blu-ray movies and have never had a problem playing any of them until last night, but for some reason the unit didn't put out a picture! I could hear all the sounds, but didn't see anything. I thought my HDMI cable went bad, so I changed it, same result. Hooked up some component cables, same result. I plugged in the AV cables and those worked, but I can't get an HD picture with this thing and I have no idea what would make this happen after working perfectly for 6 months. I didn't install yesterday's update yet, so it's no problem with that. My standalone upconverting DVD player and my HD cable box still work perfectly, so it's not the TV.

I called the customer service line this morning and the guy was mystified and wants me to send it back but I'm really worried. Anyone else had this happen? Thanks!