We're experiencing the issue mentioned here:
It only occurs when you are using the chosen script with conditional fields. It looks like when you choose an option that's not the default (on our example you could choose lunch or dinner) the width of the field is set with an inline style (probably from some script?) to be really narrow which makes the form un-usable.
here's our example for debugging:
http://toughmudder.com/form-for-debugging/
let us know if anyone has fixed this prob in the past or knows what's going on here...
many thanks!
b r e n t