See the following related thread where a crash in
Streets & Trips is traced back to a faulty GPS unit. Ironically, in that case S&T crashed and Delorme didn't, but of course different software will fail in different ways.
Microsoft Streets and Trips crashes unpredictably.
Can you lookup the message that was written to the event log when your computer BSOD'd? Start, Run, "eventvwr.msc", then select System and find a red icon that corresponds to a system crash. In fact, you can find several crashes since it keeps the logs around for a while. Copy-paste the text block, and perhaps copy the minidump file too.