WEIRD IDE problem in Delphi 2

Somewhere along the line, the Context-Sensitive (F1) help in my IDE
disappeared!  The highest the topics displayed will go is in the
"C's".

That is, if I push F1 while the cursor is on TObject, I get
"CLSIDFromString".

The pull-down menu Help works fine!

Any suggestions?  This one has me buffaloed!

Jay Faubion