Hi, Laura,
the buzzword is "Tayloring".
As shown here
[url]
www.limesurvey.org/manual/ExpressionScri...7BMrs.7D_Smith....22
[/url]
Gender has to be replaced by TOKEN:LASTNAME and Mr. resp. Mrs. by your texts
Your question (without your orgy of brackets)
{if(TOKEN:LASTNAME == "NSIH_SEP" or TOKEN:LASTNAME == "NSIH_CDIF", "" , "B part")}
You see that the equations will get very long.
Why don't you add a TOKEN:ATTRIBUTE where all Lastnames who are to see part A, get a "1", Lastnames who are to see B, get a "2".
Then your IF is only
{if(TOKEN_ATTRIBUTE_1=="1","Text A",if(TOKEN_ATTRIBUTE_1=="2","Text B".""))}
Joffm
I wrote the first part before Tony answered.
Anyway: You should always send a lss export of these relevant questions.
Many times there is only a small typo, and we write and write and write without noticing it.