Hi all,
I had a strange problem with webform conditional. On my webform, all conditional fields where visible all the time. I tried to debug and first thought, it was a problem with my template. But now I found the real problem:

I use cck_blocks. I defined such a cck block for my content type "page". And I put the cck without visibility restrictions in my right sidebar.
I don't use the cck field defined as cck_block in webforms at all. But, this not visible cck_block makes my webform conditionals beoming crasy - I have to exclude the webform-URL in the cck-block-setting to make it work.

Maybe this helps someone else in trouble ;-)