Yeah, that's what I thought. The objects were brought in separately as objs because FP wouldn't work on the FBX we imported into Max.
Anyway, I've reset the xForms and it's still doing it. However, another set of objects we're using with FP for bushes is working fine witha 100 global scale.
Anway, setting it to 6500 scale for the grass seems to be working though.
Going back to the first sentance...... We are transitioning from Maya to Max. Do you know why FP doesn't work on some FBX geometry?