In article , "Wayne"
writes:

Both my 196 and 176C do that. When you are traveling from a place that
you have a detailed map, to a place that you only have the base map, it
shows the grid for a short time. Never really bothered me though. Is this a
new problem for you?
Wayne

Ive searched the web, and not found any record of anyone else experiencing
map segments not being drawn and appearing instead as a 'chicken-wire'
type
pattern.

My Garmin StreetPilot for the car does this, too. Doesn't cause a big problem
as it "starts working" when you get in the 'chicken wire'.

Chuck