I received an email back from Gurock. Here's what they said:
Please split the SmartInspect log file into smaller pieces as the Console cannot display such large log files (this is a memory-based limitation). SmartInspect comes with a split tool and you can download this from the Extras page:
(SmartInspect Resource Kit)
We recommend log files of 100MB or less. You could also look into using SmartInspect's log file rotation feature to automatically generate smaller chunks.