There's threads about it all over the place if you can figure out the crappy search.
I think there's reasonable grounds to suspect that it's down to more than just screen height/shape, and has a lot to do with the airflow coming up through the fork 'tunnel' between the tank and the clocks.
My suggestion:
http://www.hein-gericke.co.uk/motorc...kertasche.html
No really. You can keep stuff in it too
