I've got the XM weather option on my Zumo 550, and was wondering... does anyone else get those annoying weather notifications when the skies are sunny and clear for 1000 miles around you? I am now getting a notification within minutes of powering up my GPS. It advises you of bad weather, and asks if you want to view. If you select YES, it always indicates "nothing found". If you select NO, you'll have the little thunder cloud/lighting bolt icon on the screen. I'm at a loss as to wether this is a Zumo software issue, or an XM issue.