There are a few solutions I have come up with based on my personal experiences with the same issue. Feel free to try them out as time allows for yourself and let me know how they work for you.
#1: Grounding yourself prior to touching the Taz. While this is the easiest solution it can also be the easiest to forget as well, resulting in failed prints when this gets buggered after touching your machine.
A: Touch a grounded object NEAR your machine prior to operating it. While this is obviously the easiest solution it comes with its own downsides… Depending on the length of time you are using your machine you risk building up another charge post grounding and the resultant shock no matter how small may again damage your LCD / RAMBo control board.
B: Use a grounding strap! This works well so long as your grounding strap IS NOT in contact with your machine. From what I have been able to tell the initial grounding transfer of energy is also sufficient to cause the above mentioned failures when you ground yourself to the Taz. (Essentially it is the same as touching it initially). If your grounding strap is connected to a true ground (NOT YOUR MACHINE) then you will never build up a charge sufficient to cause failures… Just don’t forget to connect the strap prior to touching your machine.
C:Use a grounded anti static mat. This option is the most expensive one listed so far but I have found that it prevents me from ever forgetting to attach a strap. I have placed an anti - static mat (Conductive fabric) that is grounded in front of my machine. So whenever i approach the machine I am grounded prior to ever having the opportunity to touch it. This works well unless of course you are wearing thick rubber shoes preventing yourself from ever getting grounded.
#2: Fix the machine
A: I have had limited success attaching a ground point on the opposite side of the Electronics enclosure. This was an attempt to provide an easier path to ground away from sensitive components. Unfortunately its success was entirely depended on where you initially touched the device. and is not recommended.
B: Coat all exposed (Frequently touched) conductive surfaces using a spray on rubber coating. So long as you are careful during application this works wonders at preventing ESD. However as the LCD casing itself is metal directly touching the screen will still cause a significant failure.
I am still waiting for a permanent solution from lulzbot to remedy this issue myself. The workarounds listed above are not guaranteed to work in all cases and some depend on the proper electrical wiring of the house itself. Use at your own risk and be careful!