Alright,
I got my Prusa Mendel V2 kit assembled. The Sanguinololu 1.3a controller came with the bootloader and Marlin firmware installed. Have Arduino 1.0.3 installed with the appropriate Sang card selected W/ATmega 1284p 16 mhz selected. Have installed teensyduino, Pronterface and Slic3r installed. It did communicate at first but I had to shut it down because my ends stops are evidently reversed. Now prontface will not communicate with my printer. This is the text left in my pronterface.exe text file:
Traceback (most recent call last):
File "pronterface.py", line 1566, in connect
File "printcore.pyc", line 76, in connect
File "serial\serialwin32.pyc", line 30, in __init__
File "serial\serialutil.pyc", line 260, in __init__
File "serial\serialwin32.pyc", line 56, in open
serial.serialutil.SerialException: could not open port COM10: [Error 5] Access is denied
Please help me connect so I can finally get this baby printing.