Module+dropdown list:disappearing when trying to select options

It's not related to JEM but had a problem with module + dropdown and after a bit of testing did find a answer and want to provide the solution here.

The thing:
- module (right position)
didn't try it it in another position so don't know if it's the same
- select box
the dropdown list had some values but when trying to select an option the list will close and it's impossible to select an option. The thing here is that "frontediting.css" is loaded and that one is messing with the select boxes.
it's used for module editing and am not using it so stripped it away.

i know it's not a real solution but it works fine but hopefully someone will find another solution.

Don't know what's conflicting but frontediting.css is for the little bubble on modules top right corner when mouseover to allow configuring of the module. This can be switched off in backend System - Global Configuration - Site - Mouse-over edit icons for ...

thx Hoffi,.

did notice that when disabling the position in class jmoddiv.jmodinside the problem went away but the downside is that modules in the front can't be edited. ah well am not planning to use it anyway.

this is how it looks at the moment over here