B,
I'm assuming that this has 2 motors and the battery is a Nimh?

How hot is the ESC getting?

Cooling is a must for both the battery and the ESC, and it makes it worse to just run it on the ground without the added airflow over the electronics.

Also if it's a nimh, it will need to be cycled a few times to build the pack up to capacity.

When you test fly it, try to keep the throttle to a minimum, 1/2- 3/4 at most and see how hot everything is after your flight, you might need to step up to a bigger battery, but not knowing the ESC specs I'm not sure what you can do.

After you test fly it, if it needs any attention come over to this thread and we'll help you with your problem.
This forum is more geared toward the nitro crowd.

http://www.rcuniverse.com/forum/m_63...age_316/tm.htm