ay Know i use streets & trips 2006 and i have the same trouble. There is a cashe here in burlington iowa at a small park i know very well. i took my laptop up there and it was way off. Not just a block but 45 or so miles. I know i am at the correct location but the Laptop GPS dont. I will look and see if i can change that setting when i get back to work on monday, thanks for the info...