Sorry to be the bearer of bad news, but WIN CE 6.0 and 64mb of memory is not a good configuration. It doesn't leave enough memory for igo8, or any other graphics intensive navagation app, to run well. You will have compromised graphics, and "out of memory" errors.
Originally Posted by misirlou
To see what I mean by compromised graphics zoom out to where you can see your entire state(or country)in IGO8. You will find that the screen can not display all the graphics at the same time, so it switches between segments. You will also experience the display of maps at, say, 1500 feet, where some of the roads on the map are blinking off and on, although this is not as predictable. That's because of the segment switching that results from low memory resources. The segment switching also increases the cpu load.
I made the same mistake earlier this year, and ended up unloading it on ebay. I ended up buying a DragonPearl-tech GPS500, which I like very much. The two very distinct differences in the GPS500 and yours is that the GPS500 actually has 128mb of memory, and it's OS is WIN CE 5.0, so it has gobs of memory to support IGO8 and other graphics intensive nav systems.
The GPS500 is a bit more expensive, but it's well engineered, and has the 5" screen your looking for. In addition it has been proven to run all of the following software;
Garmin XT v.5.00.20wp
MapFactor Navigator 9 (Truck)
Medion GoPal Navigator 5
Sygic Mobile Maps 10
Trekking, Mountain Bike....
ULM, Very Light Aircraft...
EDIT: Actually, the ebay vendor I purchased my WIN CE 6.0 64mb GPS from knew it was not capable of running IGO8 reliably, so he left the DEM files out of the configuration to lighten load on the OS. Of course, that removed all the topographical graphics.
I'm going to say this again for emphasis, and I'm really surprised that it is not more commonly known, WIN CE 6.0 and 64mb is not a viable configuration for a graphics intensive GPS.
Now all you folks with WIN CE 6.0 64mb GPSes FLAME AWAY!!!