When I plugin the board I do not get any popup screen with Windows 7. On the device manager there is an exclamation mark in front of the corresponding v3 com port and of course on the tool menu of the IDE the port is not shown. When I try to install manually the Sparkfun driver I get an error message. The driver cannot be installed. What can I do? Please help!
Try going into the device manager and manually uninstalling it, then installing the driver again. Do not plug in the device before installing the driver.