Gina is getting a blue screen on her Mac. Eventually the computer comes back, but she wants to know Why? Leo says that it could be a problem with an external peripheral. Unplug everything except your keyboard and mouse, and see if it repeats. It sounds like a communication issue between your peripherals. A bad driver or a failing USB port. Then plug each extra device in, and see which one causes it. Then you'll know which device is causing the problem, and then you can go to the website and get an updated driver.
Rusty has a home built Windows 7 Desktop and he is getting a blue screen of death. Leo says that blue screens of death were common in the early days were because of system memory/driver issues. Programming has gotten better though, so most of the BSODs we get now are hardware related or corrupted driver problems. Leo says to make sure his fans are spinning. While he has his computer open, he should clean out the dust. Then he can try rebooting in safe mode. If that works, and it runs OK, then he'll know that the video driver is failing and he'll need to reinstall it.
Dave's wife got a "blue screen," and he thought the monitor was the culprit. Leo says the simple and cheapest solution is to swap out the monitor cable first. If the issue persists, he should try updating the drivers. He can create a bootable thumb drive that will allow him to get into the computer without running the hard drive. He can also do it from a CD. His recovery disc will do this as well. Then if it's a driver, booting to a separate OS would tell him a lot. If it's still blue, then he'll know it's a hardware issue.