I tried to put the focus on another object with SetFocus, with Tab key and by clicking anywhere in my application without success.
There's a good article in this month's Segue @ Work that addresses this problem with the ApeTextField class. It uses primitives to ensure that onChange events are fired. For some reason, SilkTest's standard SetText method doesn't fire that event.
A concerned Borland customer, a fly in the ointment, a wrench in the works.