Hi Paul,

Build IBO so that the DCUs go to a separate directory and add that
directory to your application search path. Remove the IBO source path
from the search directory (and if you still want to be able to debug
into the IBO source then add it to the debug source path).

I think that should stop Delphi from trying to check if it needs to
recompile IBO. Some of the units are very big with lots of includes,
so it can take Delphi a while to decide what it needs to do.

hth

--
Geoff Worboys
Telesis Computing