InDesign CS5 print crash on Windows 7

Question

Howdy, occasionally some files in InDesign CS5 crash when I try to print them... The office has recently upgraded from CS2/Win XP to CS5/Win 7. Not sure if that has anything to do with the problem but usually persistence pays off and eventually InDesign will print the document after a number of restarts of the software and/or the machine. Weird things happen along the way too like all my print settings will disappear, which force a restart or simply crash InDesign aswell.
The details that pop up when InDesign crashes are below - not sure if anyone can make heads or tails of it. If anyone has seen this before and has any suiggestions they'd be greatly appreciated, it's very frustrating...
Problem signature:
  Problem Event Name: APPCRASH
  Application Name: InDesign.exe
  Application Version: 7.0.0.355
  Application Timestamp: 4bad00be
  Fault Module Name: ntdll.dll
  Fault Module Version: 6.1.7600.16559
  Fault Module Timestamp: 4ba9b21e
  Exception Code: c0000005
  Exception Offset: 00055de3
  OS Version: 6.1.7600.2.0.0.256.48
  Locale ID: 1033
  Additional Information 1: 0a9e
  Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
  Additional Information 3: 0a9e
  Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
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Answer 1

The very first thing to do is update to 7.0.3