"F1" help is missing

From: Wilson Thomas (wilson_at_indomel.com)
Date: 03/19/04 

Date: Thu, 18 Mar 2004 17:29:44 -0800

Friends,

I am using VFP6.
After installation help file worked OK when "F1" is pressed.
After I did something "F1" is no longer working.
While prompting error, clicking on "Help" is also not working

I tried giving SET HELP TO, still help does not work?

Any solution?

Thanks in advance

wilson