We have a new release for the Lookout Protocol Drivers. The new software is National Instruments Industrial Automation Servers and version 5.1 is the latest. Specific enhancements with Modbus Ethernet devices were made. There is not enough detail to say why LPD 4.5 is crashing. I would recommend contacting support by phone or email, and upgrading the Lookout Protocol Drivers.
Regards,
Robert Jackson
Application Engineer