Hello!
 
> i'm using lesstif 0.82.

As a first step I would suggest to uprade your lesstif to 0.85.3, which 
has *several* bugs fixed since 0.82. You can find it in a recent
version of pkgsrc (x11/lesstif).

Greets
-- 
   Name  : Thorsten Frueauf            Milano@irc cri@onaliM       //
   E-Mail: s_frueau@ira.uka.de oder ukfy@rz.uni-karlsruhe.de     \X/