Google has put stronger "auto detect" user location search preferences onto it's filters on the left hand panel. You can adjust this to your desired location, although i haven't tested this yet.
Here is Australia it's down to State level for the first time , used to be at country level. Is anyone else seeing this in other regions on the default display ?
I asked Whitey to send me a picture and he did! I've never seen auto-detection or Google asking for your location in the left hand bar. Here is his picture:
Forum discussion at WebmasterWorld.