Clicking on the About tab will show the About page:

GX3748 Virtual Panel – About Page
The following controls are shown in the About page:
The top part of the About page displays the version and copyright of the GXFPGA driver. The bottom part displays the board summary. The board summary lists the Boards Type, e.g. GX3748, Serial Number, Control String and Calibration Information.
The About page also contains a button Upgrade Firmware… used to upgrade the board Firmware and FPGA. This button maybe used only when the board requires upgrade as directed by Marvin Test Solutions support. The upgrade requires a firmware file (.rpd) that is written to the board FPGA. After the upgrade is complete, you must shut down the computer to recycle power to the board.