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Windows 7: HP Pavilion Synaptic Touchpad scrolling stopped working

21 Jan 2012   #1

Windows 7 Professional x64
HP Pavilion Synaptic Touchpad scrolling stopped working

I am helping a friend who has an HP Pavilion dv9700t laptop, with Windows 7 Pro x64 installed. The laptop has been running fine until recently, when the Synaptic touchpad's scrolling ability stopped working. The touchpad has not been exposed to excessive heat or subjected to liquid damage, and no changes have been made to the Synaptic Preferences or the Mouse options in Control Panel. A different driver hasn't been installed over the existing one. He asked me to help him determine why it has stopped working, but I can't figure it out. The only thing I can think of that may have caused both the horizontal and the vertical scrolling to stop working could possibly be a Windows update, but trying to determine which one is the culprit (if any) is almost impossible. I've tried disabling and re-enabling the scrolling options, and I've deleted and reinstalled the driver, but no luck. Should I roll back to a previous version, or try something else?

The driver version is and the Synaptics Touchpad version is V6.3, if that helps at all.

My System SpecsSystem Spec
22 Jan 2012   #2

Windows 7 Professional x64

Hooray! Great news! I figured out what was causing the problems. It turns out that my friend had broken off one of the laptop keys, and in an attempt to get it to remain on the laptop, glued it back on to the keyboard, without telling me. I discovered this when I opened Wordpad to write some notes, only to find the 9 key displaying in an active line, like this: 99999999999999999

The key had been glued so firmly that it was permanently pressing as though someone were holding it down. As a result, the trackpad wouldn't scroll (as the 9 key also doubled as the right arrow key) and the BIOS would remain stuck on the initial boot screen until another key was pressed.

After removing the key, I scraped the dried glue off of it, reattached the plastic switch to the metal brackets on the keyboard so it snapped firmly back into place, and sternly lectured my friend about why superglue and keyboards do not mix.
My System SpecsSystem Spec

 HP Pavilion Synaptic Touchpad scrolling stopped working

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