I have tried several Garmin maps of Ukraine and I found something weird on Aeroscan and CarteBlanche NT - I was able to find certain village - Mala Tur'ya in Mapsource, while on find address in Garmin XT it couldn't be found.
Then I tried igo8 version of CarteBlanche and it works perfectly.
I hope Garmin XT will match user interface of igo8 sometime. Especially as I have a s60 phone.