The bug is now fixed and both Explorer and Navigator should function fine. Thanks to Michael A Pannell for drawing my attention to this problem. The procedures for doing calculating the sample size for pairwise tests have been improved. Also the text has been improved. The text for the McNemar in the procedure pairwise has also been rewritten.
Lets hope that everything is satisfactory now.
The power calculation for doing pairwise tests has been added to the procedure power, text has been added to the helpfile August, 1999. These made that the procedures did not work satisfactory and unreliable results were produced, of the ridiculous kind so you should have recognized them. The bugs have been removed and extensive validation has been done. The equality analysis procedures now work fine. Basically these procedures have not been maintained lately and the web versions are now much more extensive using better estimation procedures.