Arrow down key no longer works correctly

Something very strange happened a few days ago. My down arrow key don't move the cursor to the bottom of line. Sometimes, it displays the title bar menu. In Yahoo Mail, it will open a new message. If I have something with a dialog like Goggle it will place ' / nb "in the search window. I was in iTunes tonight and accidentally hit the button arrow down and he made the equivalent of a right click on a podcast and selecting view available episodes. Quite bizarre.

I have a Lenovo SL410 laptop. Windows 7 Prof 64 bit.

My antivirus (Microsoft Essentials) is up-to-date and no problem. I popped the down arrow key to make sure that something was stuck, but it's nice. I did a system restore to a few days ago and have taken recent patches, but nothing seems to help. Uninstalled Microsoft all the patches this month, but he did nothing. Downloaded the latest drivers from here too, but once again no luck.

The up arrow works very well. It's like the arrow has been rescheduled, but I can not yet say with certainty that he has been reprogrammed so that it seems almost randomly in its action. It's so strange that I don't really know yet what that I seek. Any ideas?

Updated the BIOS and that seemed to fix it.

Tags: ThinkPad Notebooks

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