I have a dual g5 and Tiger on a HD with Protools 7.4. As soon as I call up omnisphere, I crash. I have no problem running Stylus and Atmosphere.

I also have a HD with Leopard, and that runs OK.

Any suggestions? I use my first system for work and am hesitant to instal Leopard over Tiger, cause it's running OK and I don't want to mess with it.

DO I have some corrupt files?