Arduino Ethernet sync errors

Arduino Ethernet Issues:

I have an Arduino Ethernet and I am having avrdude: stk500_getsync(): not in sync: resp=0x00 errors
I have already tried the general troubleshooting, resets, and trying to load drivers.

I am running my sketch on windows 7 64 bit edition:
-4 gb ram
-Intel(R) Core(TM)2 Quad cPU Q6600 @ 2.40GHz 2.39GHz

Any help would be great.