When stepping through code with Delphi debugger I get very frequent
Invalid Floating Point exceptions related to preparation or opening
of TIBOQueries. If I put a breakpoint later in the code, it will run
up to the breakpoint with no problem.

This is throughout the app, not just a particular instance. It seems
particularly common with queries created in code, so perhaps there is
a property I need to explicitly set. Any help would be appreciated.