"SC Tom" <(E-Mail Removed)> wrote:
> "John Doe" <(E-Mail Removed)> wrote in message
>> "SC Tom" <(E-Mail Removed)> wrote:
>>> "John Doe" <(E-Mail Removed)> wrote
>>>> I just bought an MX Revolution, using Logitech Setpoint 4.72.
>>>> Whenever I enter Control Panel to make the mouse wheel scroll
>>>> one screen/page at a time, the setting does not hold, it
>>>> changes back after the dialog is closed. Unfortunately, the
>>>> setpoint software is necessary for some critical functions.
>>>> Otherwise, any clues to correct that would be appreciated.
>>
>>> I'm running the same Setpoint version, and don't have that
>>> problem.
>>
>> Using an MX Revolution?
>
> No, I've a small portable laser mouse.
>>
>>> Did you click apply before clicking OK?
>>
>> Yes, and every possible combination of other things.
>>
>>> Also, you should shut down any anti-virus, anti-spyware, and any
>>> 3rd party firewall such as Norton or Zone Alarm before
>>> installing.
>>
>> I make incrimental backups of Windows during a clean install.
>> Doing one now. Fresh install of slipstreamed XP SP3 on a modern
>> Intel mainboard (DP35DP). Scrolling one screen at a time works
>> great in various applications on a clean installation of Windows
>> XP SP3, until Logitech's SetPoint software is installed. After
>> the install, when SetPoint is shut down, it works again. I have
>> seen many similar comments doing research. The scroll control
>> formats (for the MX Revolution in Control Panel mouse settings
>> and in the SetPoint software) are different, I suspect that has
>> something to do with the problem. Likely there is a registry
>> workaround, while keeping the second "wheel" volume control (that
>> is what I bought the MX for). My job... find the workaround.
>
> You're right; it does look like a unique problem to the MX
> Revolution. Have you checked or asked here?
> http://forums.logitech.com/logitech/
http://forums.logitech.com/logitech/...ssage.id=21985
Apparently no one there knows how to make a Logitech MicroGear mouse
persistently scroll one page at a time using Setpoint software.
> Someone there may have come up with a solution.
Using Sysinternals Process Monitor, filtering out everything except
operations on the registry value WheelScrollLines, you can see
Logitech's Setpoint software trashing that value. You can even
verify the process responsible for reversing the correct setting is
in fact Setpoint. I do not understand the purpose, but Setpoint
frequently/constantly changes the value from "-1" to a positive
number (like every time a window is activated), so that applications
cannot scroll one page at a time. Sometimes Setpoint changes the
correct value back to the control panel grayed out number of lines
setting, other times Setpoint changes the correct value back to the
Logitech slider equivalent number of lines setting. I did not figure
out why it chose one over the other wrong value.
However... Apparently the registry key Desktop can be made read only
to keep Logitech from persistently trashing the registry value
WheelScrollLines. How well that works might depend on how often the
Desktop key needs changing. So far, it works great here, it even
solves some related problems.
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