That period of GPS craziness was as I was driving along the A40 heading for a CND of Cotswold Lions Tour 2010(3) before spending a short time scouting out possible cache hide places. I knew roughly where I was going thankfully, and the cache page hint put me right on it.
Pleased it sorted itself out after a while as I did A Fine Pair # 377 ~ Quenington this afternoon and although I know the starting point well of that one, there is no hint for the final on the cache page which could of hindered me.
It was quite blustery this morning, with a lot of cloud cover. I have heard other people say their GPS signal reception is effected by bad weather, but I haven't noticed it before. Occasional odd blips where the arrow would be in the wrong place, but never like today. Most of the way from Ciren to Northleach the route was not tracking true to the road on the map, and then when I headed west towards Cheltenham it went crazy as you can see. If it wasn't the weather then I don't know what was going on.