Vista - Localization in WPF

Hello,

Is there a convenient way to implement on-the-fly localization in WPF?
Ie. you select a new language, and the language of the application
changes immediately without a restart.

I tried the generic approach using extracting string with LocBAML and
compiling them back into satellite assemblies, but it doesn't support
on-the-fly translation. Not to mention that it puts all the resources
into each assembly, including images, brushes etc. What is the logic
behind this?

Next, I tried the string resource approach, where on the language
change a new strings resource is loaded and the caption / text
properties of all the visible elements are replaced manually.
Cumbersome, not elegant, but does the trick. Except that I could not
find a way to replace the strings for not instantiated windows without
making the implementation even more cumbersome.

I am currently investigating the method of storing strings in a
resource dictionary, but I dont like this approach at all, as it seems
like a step backwards.

is there a more elegant way to achieve this feature?

Cheers,
Roman