I realize this thread has died but thought I should post this in the event that a Dreamer owner ends up here searching.
According to documentation from Flash Forge, the Dreamer does not use G130. It uses M907 to set the stepper currents.
I suspect that the original poster's success was the result of the Placebo effect.
It is, of course, possible that FF has changed the newer Dreamers but my 2 yo one definitely does not respond to a G130 ......
Graham