For this idea have a modelcheck error for Circular references actually spell out what is wrong and what the loop is. At LEAST using the same words as the .crc file. We would appreciate better wording than the .crc. Currently it just lists the model, which is very confusing and doesn't help much. The Creo 4 notification window doesn't help much in this area as well. We need to move away from the .crc file to debug circular references. Modelcheck AND the notification window should be better used for this.