Scrollbar anchoring at bottom of browser wind

July 31, 2010 at 14:58:46
Specs: Windows Vista 32-bit
About a week ago my parents computer scrollbar started acting strangely. When using firefox, the scrollbar would move down rapidly by itself, and anchor at the bottom of the window. When trying to move it upward manually, it is as if you are fighting the computer for control...all it wants to do is go back to the bottom.

At first I thought it might be a virus...did multiple scans all come up with nothing.

Have checked all drivers and settings for the mouse, and trackpad. This problems was occurring in both areas.

Have done a hardware scan, says system is working normally.

Have uninstalled and reinstalled drivers... degragged c drive, installed updates, tried patches, used fix-ya, used clean up registry...etc. Am reinstalling the service pack 2 and a hot fix?, as forums say it could be causing problems...

Finally did a clean install to factory settings, install all the upgrades...etc. Changed the mouse...still no joy!! Am getting very very frustrated. Starting to look at all the options again....

They are using a Sony Vaio laptop VGN-NR498D running Vista 32 bit. Right now is running IE 8. Have tried 3 different optical mice...etc. Was using firefox and google chrome, all has some issue with the scroll bar.

I would guess that this problem has something to do with an incompatible upgrade?? I have looked and looked through various forums, but no one seems to have a clear answer to the problem! I need to get this fixed before they throw the computer against the wall!

Would like to upgrade to Windows 7, but need to be assured that this problem can be resolved before upgrade and not just end up in Windows 7 as well.

What am I missing??? Help is greatly appreciated.

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July 31, 2010 at 22:17:43
Being a laptop did you install the software for the Mouse/Touchpad, that would seem the obvious place to start, an external mouse does not usually by default disable the internal mouse/touchpad.

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July 31, 2010 at 23:21:15
what i found was that the scroll bar problem was affecting the external optical mouse, and the track pad as well. I uninstalled each device individually to see if i could isolate the problem, but even with the trackpad disabled and all drivers etc reinstalled....etc, problem still persists. Sometimes it is as though I think I've fixed it, but within less than an hour or sometimes even 5 mins the problem is back.

I also saw on the internet some where that it could be a graphics card issue?? I don't know anything about this.

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July 31, 2010 at 23:25:23
I also have another silly question. If this is a driver or software conflict, rather than a hardware issue,do yo think an upgrade to windows 7 with a clean install might just take care of it? or could the issue transfer across???

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Related Solutions

August 2, 2010 at 07:42:57
I found the solution. In the device manager, I uninstalled the Human Interface Devices (Sony Firmware Extension Parser Device). This seems to have taken care of the problem.

I had been in and out of system devices looking (knowing it must have been a problem with drivers) and hadn't noticed this before.

Works perfect now.

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March 25, 2011 at 19:38:35
we are having the same scrollbar problem. it is w/ all the scrollbars like the volume and the favorites--they just drift down to the bottom. if I uninstall the human interface devices will it mean I can still use the USB ports like the external mouse. I'm afraid to uninstall it and then not be able to install it back if something goes wrong. advice appreciated.

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