I'm glad that replacing seals DIY worked for all of you but it didn't for me, so it was off to David Odess (who is an incredible repair technician in his work and in customer service). I needed the nylon stop/gear/thingie replaced as well as the light seal, plus he tuned the body as well (the whole brake assembly fiasco, see his site for more details)...camera is now an awesome piece of manual photography goodness.