Has anyone else seen this problem:

Background: This is a .NET-based RTD Server with RTD functions that are
called through wrapper functions (UDFs).

I have a working spreadsheet with an RTD function that returns its
output to both single cells and to an array formula. When I move the
spreadsheet to another computer and begin the RTD updates, single RTD
cells are updated fine, but cells that are in the array formula will
not update until the array formula is redefined - i.e., reselecting the
region of cells targetted by the formula and hitting ctrl-shift-enter.

Thanks