InfoPath Dev

hi all, i have 6 regions (North America, South America, Asia.......) and countrys associated with it..the user should be able to choose multiple countries, i proposed cascading DD with country DD as repeating section,,,but they don want it..inistead they want region in a DD and its suppose to populate a section with name of countries with check ...

hello all,, i have 2 dd DD1 and DD2 with value DD1(1,2,3,4) and DD2(a,b,c,d) and a textbox filed.. now if i choose 4 then the textbox should display "n/a" and if i choose (c,d) it should also display "n/a"             ...