Thanks for the tip. I'm new at this so I guess I am learning as I go.
I tried the fix but still am getting the same message. not sure if the problem is registry-related because there is no mention of the registry in the error message. it just says "there is a problem with the lebanon installation. please re-install lebanon and start mapsource again". results of the fix say 9 maps checked (lebanon included) no problems to repair. here's the report in case it helps in diagnosing the problem

No. Map name FamilyID ProductID Status TYP file

1 City Navigator Australia v7 177 1 Ok
2 City Navigator Middle East v4 241 1 Ok
3 City Navigator New Zealand v3 178 1 Ok
4 EAST AFRICA STREETMAPS V1 1095 1 Ok I0000447.TYP
5 Lebanon V1_05, Al-Quhtani 5038 15 Ok
6 OpenStreetMap Cyprus (2008.10.05) 7620 1 Ok OSM.typ
7 SE Asia 335 1 Ok
8 City Navigator Europe NT 2008 284 1 Ok
9 City Navigator North America NT 2008 244 1 Ok

Greatly appreciate your help. Thank you