Driver problem with MSP430EXPFG4618

Hi all,

I recently bought MSP430EXPFG4618 kit. I installed IAR workbench that came with the CD. Before that i was working in an old version of IAR with an old Kit which was working fine. When i plugged in the new kit after installing the neew IAR. A driver named MSP430-VCP got installed. But IAR says failed to detect the target when using Download and Debug option. I  suppose the correct driver is not installed. Where to get the correct driver file for the kit .. How to install it?

Thanks,
Sundar