Interesting problem ....on my site teh module (that you enable on your default site template to enable the switch back ....doesnt seem to display ...no matter what module position i set it for. Yes it is published.
Interestingly if I publish the module to a position that I am currently not using ..it does create the module position with just white space.
SOLVED: I was trying to use my desktop browser to visualize the module ...of course unless its a mobile browser the module does not show UP...worked fine on my blackberry!!!
Any tips