Mike,
Decimal(1,0) will not hold as large of a number as is possible in an INT field. So, that is why the warning comes out. If you don't want the warning, then change the EGL Editor preferences. There is a preference that was added at 9.1 or 9.1.1 which says that "Warn when moving data to a smaller field". If you don't want the warning, then uncheck this. You can also ignore if you know the data will never be too big for the decimal(1,0) field.
take care.
Mark
markevans