Hi, in trying to split a DVI signal to HDMI projector and VGA monitor. I have a thunderbolt monitor and want to split the secondary monitor (DVI) to a projector and JVC plasma display monitor. I don't need the 3 different displays to do 3 different displays, I just want the DVI signal to split so I can play the movie in the studio as well as the recording booth whilst keeping my pro tools session active on my apple thunderbolt display. The specifications of the machine is as follows:
Mac Pro 2 x 3gHz quad core Intel Xeon processors
ATI Radeon HD 5770 with 1024mb RAM

Many thanks in advance for any help.
Cheers!