Wirelessly posted (htc Pocket PC: Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 7.11) Sprint MP6950SP)
Try a soft reset before opening google maps like the previous poster said or run CleanRam before opening google maps. These have helped me in the past on my Vogue and Diamond. It could also be 6.5 because I use 6.1 on mine and GPS works great.