At 21:08 10/12/2000 Thursday, Winship wrote:
 >>
 >>  > s hyper not (hypertext or hypermedia) in FINAID-L SINCE TODAY
 >> Invalid search expression - stack not empty after final evaluation.

 >What gives?  Douglas

Try adding AND

s hyper AND not (hypertext or hypermedia) in listname

Though I am "not" sure of the semantics, that syntax does not produce the
error message.

/P