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Are you still able to open theirs files? This usually indicates that Windows can't find the underlying file. 
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Are you still able to open theirs files? This usually indicates that Windows can't find the underlying file.

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Right Click on Desktop and Select Properties &gt;&nbsp;Appearance &gt;<br />
Windows and Buttons = Windows XP Style<br />
Color Scheme = Default (Blue)<br />
Select &gt;&nbsp;Desktop (tab wihtin disply properties window)<br />
Choose background as Windows XP.<br />
&nbsp;<br />

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Right Click on Desktop and Select Properties > Appearance >
Windows and Buttons = Windows XP Style
Color Scheme = Default (Blue)
Select > Desktop (tab wihtin disply properties window)
Choose background as Windows XP.
 


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It's sometime happen caused by security tools or backup software.<br />
<br />
<a href="http://forums.adobe.com/message/2778651" rel="ugc nofollow">http://forums.adobe.com/message/2778651</a><br />
<a href="http://social.answers.microsoft.com/Forums/en-US/w7desktop/thread/06f4dbb8-1ad9-455e-85b2-b21d862d67f6" rel="ugc nofollow">http://social.answers.microsoft.com/Forums/en-US/w7desktop/thread/06f4dbb8-1ad9-455e-85b2-b21d862d67f6</a>
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It's sometime happen caused by security tools or backup software.

http://forums.adobe.com/message/2778651 [http://forums.adobe.com/message/2778651]
http://social.answers.microsoft.com/Forums/en-US/w7desktop/thread/06f4dbb8-1ad9-455e-85b2-b21d862d67f6 [http://social.answers.microsoft.com/Forums/en-US/w7desktop/thread/06f4dbb8-1ad9-455e-85b2-b21d862d67f6]

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I can still open the files. I do not have Mozy installed - though I did have drop box and have uninstalled it. Changing the display properties/backgorund/wall<wbr />paper did not resolve the problem, which is still there.<br />
If i drag a file to the desktop, a red circle/white explanation mark appear on it.
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I can still open the files. I do not have Mozy installed - though I did have drop box and have uninstalled it. Changing the display properties/backgorund/wallpaper did not resolve the problem, which is still there.
If i drag a file to the desktop, a red circle/white explanation mark appear on it.

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I did not have online backup I installed one and then turned it off and the problem ewent away.
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I did not have online backup I installed one and then turned it off and the problem ewent away.

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My desktop &nbsp;icons (word documents, PDF's etc) all have a red circle &nbsp;with a white exclamation mark. This only applied to files ( or programs) on the desktop - not to shortcuts.
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My desktop  icons (word documents, PDF's etc) all have a red circle  with a white exclamation mark. This only applied to files ( or programs) on the desktop - not to shortcuts.

my desktop icons have a red circle with white exclamation mark

Microsoft Windows XP is the sixth release of the NT series of operating systems, and was the first to be marketed in a variety of editions: XP Home and XP Professional, designed for business and power users. The advanced features in XP Professional are generally disabled in Home Edition, but are there and can be activated. There were two 64-bit editions, an embedded edition and a tablet edition.

Windows XP

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.