Hi Bill,

Mavericks is up to version 10.9.3 now. 
Have you checked that Logitech have updated drivers for Mavericks for your 
model mouse?
Normally third-party software/add-ons etc need to be updated or they can cause 
issues. 

I would suggest you download & install OS X Mavericks 10.9.3 Update (Combo)
<http://support.apple.com/kb/DL1746>
Do the normal preparation first: Repair Permissions - BackUp - Install the 
Combo - Repair Permissions after installation completes.

You could also Go to System Preferences -  Accessibility and for the mouse 
options or Trackpad options and set "scrolling with inertia".  

Cheers,
Ronni

17" MacBook Pro 2.3GHz Quad-Core i7 “Thunderbolt"
2.3GHz / 8GB / 750GB @ 7200rpm HD

OS X 10.9.3 Mavericks
Windows 7 Ultimate (under sufferance)

On 19 May 2014, at 9:56 am, Bill Parker <ren...@westnet.com.au> wrote:

> Ronni,
> 
> A bit old fashioned here.  I only use a hard wired USB connected mouse ( 
> Logitech in fact).  
> 
> Tried the suggestions below with no change.
> 
> Wondering if upgrade to 10.9.2 would help here?
> 
> Bill
> On 19 May 2014, at 9:10, Ronni Brown <ro...@mac.com> wrote:
> 
>> Hi Bill,
>> 
>> On 18 May 2014, at 11:03 am, Bill Parker <ren...@westnet.com.au> wrote:
>> 
>>> However, Mail is still playing up and flickers like mad when scrolling!
>> 
>> Are you using a Apple Magic Mouse or a Trackpad? Does it only happen in Mail 
>> App?
>> Do you have installed any third-party software that might affect the mouse, 
>> trackpad, or scrolling?
>> 
>> Check in System Preferences to see if anything has changed with your Mouse 
>> settings or Trackpad settings.
>> 
>> If using a Magic Mouse, OS X Mavericks: Use an Apple Magic Mouse - 
>> <http://support.apple.com/kb/PH14260>
>> 
>> You could try deleting the mouse.plists
>> 
>> You need to look in your User Library/Preferences for the .plist.
>> Either hold down the option key while using the Finder “Go To Folder” 
>> command and select your user Library in your home folder or use the Finder 
>> “Go To Folder” command and enter ~/Library/Preferences.  Move the .plists to 
>> your desktop.
>>  
>> Test. If it works okay, delete the plist(s) from the desktop.
>>  
>> If the same, return the .plist(s) to where you got them from, overwriting 
>> the newer ones.
>> 
>> Cheers,
>> Ronni
>> 
>> 17" MacBook Pro 2.3GHz Quad-Core i7 “Thunderbolt"
>> 2.3GHz / 8GB / 750GB @ 7200rpm HD
>> 
>> OS X 10.9.3 Mavericks
>> Windows 7 Ultimate (under sufferance)
>> 

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