i have 9.8, and just voted.
I have used the sat nav quite a few times and all over england, wales, and the scottish border. I have to say that i have never noticed this problem.
I look at the small matrix display between the dials, which accurately tells me when to turn etc, and ive never had problems with satelites disapearing, i always seem to have at least 5-6 satelites in view?
Sorry to dissapoint but mine seems to work very well. Im on the brink of getting rid of it tho, as i want something that plays mp3's, dvd's, and tv etc.
The only problem that i do have with mine is that when playing music cd's, it stops for a split second then resumes, as if the cd is scratched or the unit is jumping. Ive tried all different types of cd and mp3 disc but always seems to be there.