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摘要

Missing buttons in some dialogue boxes Q Sometimes, a notice appears on my Windows 7 PC informing me that an update is available. The problem is that the right-hand side of the notice is missing and there is nothing to click - no buttons, that is. Whenever it appears, I have to restart the computer to make it go away. However, it reappears sooner or later. Also, sometimes when downloading new software or updates the bottom part of the window seems to be cut off. In one example, I can just about see the top sliver of three buttons -so at least I can click those. Why is this happening and how can I correct it?