That is a crash dialog for NVE (Network Variable Engine). If you don't use shared variables in a LV project you probably would never notice anything is wrong.
You say you get this on 3 different machines? Does it only occur on boot? If you go to service control center (Start Menu->Control Panel->Administrative tools->services) and start/restart "National Instruments Variable Engine" does it crash then too? what libs (with variables and/or I\O Servers) do you currently have deployed. You can check with Variable Manager (Tools->Shared Variable->Variable Manager)? What are the specs of the machines you are seeing the crash on (CPU speed, ram, how many CPUs, winxp?)
I know I asked a lot of questions, but the more info the more likely I can help you.