Hi,
I have a Navigo and have firstly installed maps for South Africa and they are:
South Africa Swaziland and Lesotho 880.3823 v880.3823
The device works fine with only this map on the device.
I have then additionally installed the following maps:
United_Kingdom_and_republic_of_ireland_910_4952
V910_4952
Language: English UK
pocketpc device
app version 7.450 (9028)
free ram 18.5Mb
GPS driver V1.20
After installing these maps the unit has become very very slugish, all menus are very slow ...