Please state your full Windows version (e.g., WinXP SP3).
References:
How to correct "disable Autorun registry key" enforcement in Windows:
http://support.microsoft.com/kb/967715
All the PCL inbox printer drivers become unsigned after you install the
Microsoft .NET Framework 3.5 Service Pack 1:
http://support.microsoft.com/kb/961118
Update for Microsoft Silverlight, February 18, 2009:
http://support.microsoft.com/kb/960353
You cannot play content that is protected by Microsoft Windows Media Digital
Rights Manager in Microsoft Windows Media Player 11 after you upgrade
Windows Media Player or the operating system:
http://support.microsoft.com/kb/959772
Microsoft root certificate program members (January 2008):
http://support.microsoft.com/kb/931125
None of the updates you listed were security updates (so you do not qualify
for no-charge support from MS) and I'd very much doubt that installing any
or all of them would have caused the "loss of focus" behavior.
Is it a Desktop or Notebook PC, Rajiv? If a Desktop, see if using another
mouse makes a difference. If a Notebook, are you using the touchpad to
navigate or a mouse?
If a wireless mouse (Desktop or Notebook), make certain the receiver is not
located near anything electrical (e.g., modem; lamp; external HDD).
--
~PA Bear
Rajiv K Khandelwal wrote:
> The updates installed were:
> 1. Update for Windows XP (KB967715)
> 2. Update for Windows XP (KB961118)
> 3. Update for Microsoft Silverlight (KB960353)
> 4. Update for Windows XP (KB959772)
> 5. Update for Root Certificates
>
> These updates were from Microsoft Update site.
>
> PA Bear wrote:
>> Again, what updates did you install?
>>
>> Rajiv K Khandelwal wrote:
>>> Thanks for the response. Just installed the Microsoft updates from the
>>> Microsoft site. No third party update or programme was installed.
>>>
>>>> What "security updates" did you install? What third-party driver
>>>> updates did you install?
>>>>
>>>> Rajiv K Khandelwal wrote:
>>>>> Following the latest security updates on my Windows XP Professional,
>>>>> a peculiar condition is happening frequently. While writing a mail or
>>>>> a
>>>>> document file, the cursor disappears - active window gets greyed as
>>>>> the
>>>>> one in the background. One has to click on the window to make it
>>>>> active
>>>>> once again. I wonder if others are experiencing the same phenomenon.
>>>>> Is
>>>>> there any remedy for this as this is very irritating as it happened
>>>>> three four
>>>>> times while writing this post.