Geopak + InRoads = No Cross Sections

We have computers with  the following software installed:

 

MicroStation (SELECTseries2) 08.11.07.443)

InRoads Group V8i (SELECTseries2) 08.11.07.428

GEOPAK Suite V8i (SELECTseries2) 08.11.07.427

 

When attempting use Geopak to draw cross sections from a surface the app crashes and brings MicroStation down with the following message in a command window:

 

System fault: 5

"tbcxs.mc"gmcTbcxs_Process

MDL Loader: Could not load application e:\builds\gkste081107427\Source\geopak\eu

ro\src\\xsdmn\tbcxs\src\tbcxs.mc

XSDMN is the MDL debug application.

mdb>

 

I have encountered this problem on two separate computer platforms, one with XP SP2 and one with Windows 7 (x64).  On one of the XP computers the Bentley software was uninstalled and MicroStation and Geopak were reinstalled.  The draw cross sections app then worked as expected. This leads me to suspect there is some sort of conflict between the Geopak and InRoads software installations.  Any ideas on how to fix this?