PC and 3d Printer don't wanna be friends!!!

Hi guys! I recently bought an Anet A8 3d Printer and I'm having problems connecting it to my pc. The printer came with Cura software and I also downloaded the Matterscontrol. The arduino drivers are CH340G. I'm using Windows 7 Ultimate and the pc doesn't recognize the printer. I read this morning some guy had the same problem and he even bought three new motherboards until he realized the USB cable was too long. So I bought a shorter one (3,5 feet); didn't work either. When I plug the printer the PC produces the typical beep but that's it, no recognition/communication!

Any ideas? Even shorter cable? Updated drivers? Thanks in advance!

How about asking the folk that made your 3D printer?

Or asking for your money back? Or seeing if it will work with Linux?

I don't have your device but I have used a 2 meter USB extension cable (total about 3.5m) with several gadgets with no problems,

...R