I had the same problem and Stereophile quickly sent me a replacement copy.
Is there something missing in your April 2001 Stereophile?
As I was looking through the April 2001 issue (VOL.24 NO.4) today, I noticed that I could not find the speaker listings in the 2001 RECOMMENDED COMPONENTS section. Come to find out, pages 99-114 are missing, and there are two sets of pages from 115-130. Has anyone else found the same from your copy of this issue?