Dynamic text scrolling - help?

if you use more than one dynamic text block scroller, do you have to give the scrollers different names?
i’m having problems with my site. all the scrollers worked fine. then i tried to add more on different pages (within the same flash file – different frames)
i continue to use the same actionscript code, changing the names of the txt files and such as necessary. i’ve checked the work several times and the only thing i can see as an ambiguous problem is this possibility. am i right? or is there something i’m missing?