Can´t connect my ultimaker with Cura

[pablomatteoda 1]

Hello guys

I bougth an Ultimaker machine, I have assambled it, but when I conect it via USB, and installed Cura and Netfabb trial version. Neither of them worked.

Cura Installs but when I want tu upgrade the firmware to Marlin, It stays in "conecting to printer". I´ve tried to use it whitout upgrades, but when I import an STL file y doesn´t show me anything on the 3d screen.

While using netfabb, I´ve installed it, open clicked on Ultimaker on the rigth panel, imported the STL file, and followed the first step (

http://wiki.netfabb.com/USB_Control

) but can´t configure USB control.

please help me!!!

[yzorg 9]

can you specify what computer and operating system?

i know some windows machines can have a hassle with the USB drivers needed to connect.

on my mac there were other problems like running the software.. but runs fine now.

[goodwell 0]

Could it be thats missing the USB-Drivers for the Ultimaker/Arduino?