2 tables out of register

[balloonguy]

I have a 2 tables on a 6 color/8 station diamondback that are out of register. Can anyone tell me what causes that? Shouldn't the table be in the same position (relative) to each print head? It is really weird. 6 of the 8 prints are perfect and 2 are really out of whack. I checked to make sure that the screens are tight. I made sure the tables are locked in place... I am getting pretty frustrated. I just started today!
Thanks for any ideas/suggestions.

[Nation03]

Possibly loose print arms or pallet brackets? Was there less tack on those particular pallets? I had the same issue on my old Freedom and it drove me insane. I never found a solution either.

[cleveprint]

try the pallet arms. we have two diamondbacks and this has happened to us before. both times it was the bolt that holds the pallet arm to the carousel came loose.