The Bing Maps blog states that the "new" Bing Maps style will be implemented today.
I'm seeing a strange mixture of old and new tiles when using the ArcGIS Server JavaScript API (use this sample to test, choosing the Roads option). http://www.bing.com/maps does not exhibit this problem.

Questions
1) am I just unlucky in trying this exactly as ESRI/Microsoft are changing the tiles over? (ie, does it work differently for you?)
2) if not, how can I force my users to download new Bing Maps tiles (but only once, allowing them to cache them hereafter)?
As luck would have it, I have a product launch scheduled for tomorrow so I'm hoping desperately that this problem will resolve itself overnight, Australian time...

