matrox triplehead togo issues

i have just got a second hand triple Analogue edition i have downloaded the correct software for it and checked the leads but it doesn't seem to work? i get the green light on the box okay and the forward view is there but no sides? im only running the centre and right side view at the mo due to needing another projector,don't know if thats the issue? when i go into desktop settings in the matrox software it sais no matrox hardware found any ideas thanks.

My guess is an out of date driver maybe, have you tried installing the latest driver?
Cheers Gwyn

thanks for the reply,i went on the matrox site and downloaded the analogue software for windows 64 bit, is there something else then i need? i unistalled it and reinstalled it but no difference, where else would i get an up to date driver from? thanks