Oh dur. I missed the part about the lens cap being on. In my defense, it was way past my sleepy time.
I am seeing more and more light leak issues, with our beloved Soviet Steel™. Although the felt and the sealing kits will fix a lot of these problems, is it simply a band-aid fix? If I recall correctly, none of these cameras left the factory with any sort of light seal in the channels and with their dep grooves, there really shouldn't be a be a need.
I'm not preaching against the kits or anything, it just seems that there could be a more permanent fix for the issues, on a general basis. Feel free to slap me up-side the head, if I am way off base.