This hasn't been a problem before, but now when I try to save out some composited texture bakes from Photoshop as a TGA file, the option to check the Alpha Channel box is greyed out, giving me no transparency when I load it into Maya. I set it to 32-bit when exporting, and the Mode is set to 8-bit. Not sure if that needs changing... The last texture export I did was set to 8-bit too. I've tried playing around with the Alpha in the Channels box, but it doesn't seem to be making any difference. Any ideas what I'm doing wrong?