search not case sensitive...

Hi to all, i have one question...

I add on the search the city field, but i see this problem : if one member is from milan( with small "m"), when i search by city and write Milan (with big 'M'), dolphin doesn't found it !

How is possible to make the search not case sensityve ?

I use dolphin 6.1.6

Thank to all...

Use of a zip/postal code database would fix this problem, as members will search for the zip and mile/km radius and not a city which may or may not be spelled correctly.