At .75 mi and .5 mi scale, the map shows no roads in my area. Some of them stop at an intersection even though they are fairly busy, main roads. I used to get them on my AVIC-S1 but some Pioneer tech, when I called about it, said that showing the Class 4 roads at those zoom levels was a mistake and they don't do that anymore.

That makes the map useless when there is an accident or other problem because when you can see the nearby roads, you can't see a big enough area to see how to get around the problem. When you increase the scale, you don't see the roads.

Has anyone got a fix for this?

One way would be to plot your destination and select a course that avoids freeways. Or zoom in on the area you want to go through, plot a waypoint, then zoom back out. etc.