Every time I try to export a QuickTime my system crashes and I'm unable to save or force quit without restarting.

To be more accurate it happens when I try to change anything settings wise it all greys out and crashes.

I have uninstalled then reinstalled the software twice , reinstalled QuickTime 7.2 , changed the Hardware Acceleration , power cycled the hardware , used other settings etc

I'm running Symphony Nitris version 1.7.7 with 3Gb of ram on an XW8200.

If anyone has any ideas how to solve this I'd be very grateful as it's 1 am here and I'm starting to see things.

Try the following. Open QT player, go into the settings, search the Advanced tab and deselect Direct-X and choose the other options (GPI only or something like that).

Thanks for the reply Job. I fixed it by updating the Nvidia , why it didn't work first time is a mystery.