If an Evans and Sutherland Lightning 1200 video adapter is put to sleep, the bus stops responding (hangs) when Windows 2000 attempts to wake the adapter. The adapter does not wake up.

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The Evans and Sutherland Lightning 1200 video adapter has built-in power management features. When Windows 2000 shuts down the adapter, the clock on the adapter also gets shut down. This makes it impossible for Windows to read the sub-vendor ID.

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To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

This problem was first corrected in Windows 2000 Service Pack 1.

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