Looking at your crash report, Suitcase does not appear to be implicated.
Instead, your crash is in this odd plugin:
Which appears to be in:
0x17274000 - 0x17292ff3 +com.adobe.InDesign.Telescope.sdk (7.1.2 - ???) <97F7B6BF-280E-4A72-4820-09258E50379F> /Applications/Adobe InDesign CS5.5/*/Telescope.sdk
I guess this is the North Plains TeleScope DAM system? Shame on them! They're not allowed to name their plugin "com.adobe.anything" if they're not Adobe!
Anyhow, try removing the plugin. Assuming that fixes it, contact them.
Removing the Telescope plugin resolved the issue (at least for now, InDesign will be "under observation" for a little while with this user). The user does not recall installing the plugin and we don't use it in our environment so I'm not sure how it got there - I assume it piggybacked off of some other application.
Thank you so much for your help with this, and thanks to everyone else who took the time to read and reply.