insane 10 site cctv display monitoring software problems

hi guys and gals

i have done a 9 screen display system for a well know pizza shop which has 10 sites

now pc system for recieving is way over spec and net is all good on all sites but i need a program that will run 10 windows (1 per site) most only do four windows

any help would be a great

KInd Regards

ps i used screen fusion for 9 monitor set up

pps i can get all 10 sites throught ie but ie freezes up from time to time and they have to restart ie and log back in to each site