It's just happened once, but I don't want to take any chances. I shut my laptop for lunch, and when I came back it had shut down from a BSOD. It's a Lenovo laptop, Windows 7 Ultimate 32-bit.
Here's the message:
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Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
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