problem with /o and parameters

Hello,
 
I am trying to open a new session and pass some parameters into the session.  As this is being called by other scripts, there is a check variable that has to be set.  I used a harmless screen call so that the script would process setting the variables, as from the documentation it looked like nothing would happen in the script until a screen command had been made.  Here is the syntax I am using:
 
Screen SAPLIQS0.0100

Set F[Notification type] "H1"

parameter cr_notf_guixtmode


set V[z_cr_notf_ guixtmode] &U[cr_notf_guixtmode ]
(and there are other parameter / variable combinations)

At first I had the parameters going through an inputscript because of the way I was trying to do it before, without the /o.  From that inputscript I can see that the parameters are being set correctly on the source screen.  Please let me know if anyone has suggestions as to why this is not working.

Thanks and regards,