I was caching in Pittsburgh, PA today and had GPSr problems between 11:30AM to about 12:30 PM. My GPSr went crazy. It was drifting randomly up to 8 miles. I would turn it off, back on, get a good location for about 15 seconds and then jump to a different location 4 or 5 miles away. I have GPS hardware connected to my pocket PC and had similar problems. Both are working fine now. Just wondering if anyone else had problems today? Was this a result of terrorist threats today?