Did you try to uncheck Options > IRC > Options > Show: Nicks on join (as I sort of suggested)? This could potentially solve your problem.
Yes, as I said in an earlier post, that option is unchecked along with all the other ones on the same page.
Maybe I'm inputting the script incorrectly? I copy and paste the code into the remote script section and thnen save as ***.mrc. Is that correct? Could it be that some spaces or the copying is altering some aspect of the script code before i paste it?