Summicron stuck to infinity (re post)

[Stelios]

I'm reposting this since my last post might have been misleading.

Here's the simple version. I mounted my v4 35mm summicron on my M6 and it got stuck to infinity. The focus lever won't move for any reason, not even unmounted. No knocks have been involved.

Any suggestions would be welcome, I can't take it to a technician until Tuesday, therefore I'll be stuck to taking pictures of things far far away..

Thank you