Stair-step print Problem, of Large objects, using Makerbot-3.7

[EagleSeven]

When using Makerbot-3.7 software, objects that have first layers wider than 70mm
will not print All of first layers before doing other layers.
So, it prints 3rd or 4th layers Way Above the Bed-plate, at one side of object.
Only happens with Makerbot, can use Same .stl files in Replicator-G with no problems.
It acts like something is running out of memory space for each layers data ??
I know it's not a hardware problem, also, since Replicator-G works.

Any suggestions would be appreciated.