A few odd occurrences lately have me pulling hair!,

- Rep G was working better than all the other programs (go figure), but now when it goes to print, it prints in the middle of the air! absolutely no where near the build plate, I cannot seem to fix this, it seems to have amnesia and can't remember where the heated build plate is anymore!

- I try to import some models into RepG and they just don't appear? even tried RepG large models same problem.
- Even though i deselect the raft check box it still prints raft! wtf

- SLI3ER exact same problem, air printing again!!

Makerbot desktop, used to work perfectly, but now the filament just sticks to the nozzle, the same model was working fine in Replicator G straight before I tried it in makerbot, so the build plate was level,

The weird thing is , I haven't changed any of the settings, so i am at a loss!

I want to get Simplify 3D, but am waiting till next payday!

Any ideas ?? I really want to get printing again tonight!