Thanks to everyone who answered my tiger and driver questions!! I'll follow your suggestions and install it on a separate drive. I'm encouraged that the PSP plugs work and as for ProTools, I'll be able to continue using it with Panther. I only use it for transfers anyway and so it's no big deal. Now if only Hewlitt Packard would post drivers for my printer. cheers, Judith Gruber-Stitzer film composer Montreal