Windows 2008 Cluster loses one node of cluster

Setup in this instance:

2 x IBM x3650 bother containing the following:
2 x Emulex FC Cards
4 x Broadcom NetExtreme II 5709C NICs
2 x Broadcom NetExtreme II 5708C NICs

Issue - building a Windows 2008 Enterprise x64 cluster containing just a Quorum and a test service/applciation, one node would intermittently fail, reporting it lost connection with the quorum

Cause - Trend Micro OfficeScan 10 and SP1 - TDI Driver

Resolution - Disable Startup of TDI driver via the following steps:

Open Device Manager
Select View > Show Hidden Devices
Expand Non-Plug and play devices
Select Trend Micro TDI Driver > Properties
Go to Driver tab
Under Current Status press the stop button (this may or may not work, if not, do next step and reboot both nodes)
Under Startup change the type to Disabled (Uninstalling the driver didn't work, because it was installed automatically at the next boot.)

Do the same on both nodes and reboot.

This has also been discovered to be the case in Trend Office Scan v8 SP1 as per folloing blog:

http://blogs.microsoft.co.il/blogs/dario/archive/2008/12/15/trend-micro-officescan-on-server-2008-cluster.aspx