Outlook 2010 does not show PNG images

Hi,

I've replied to this on a seperate thread, and you actually seem to be having exactly the same issue we're having, so hopefully the below will help you fix it, albeit without actually getting the root of the issue:

We have a very similar issue with one of our corporate emails.  Images are stored on various servers and all but the .png files load correctly.  The .png files show a red cross with the error "The image cannot be shown...".

I tried various changes to security settings until all security was effectively switched off and the issue was the same.

I managed to 'fix' the problem by clearing the outlook secure temp files cache and reopening the mail (outlook must be closed when you do this) - all the images started displaying correctly.  It's almost like the cache had cached the error message with a blank image, and then because as far as Outlook was concerned there was a cached version it wasn't trying to pull them down again even though they were available on the server.

The default location on Windows 7\Office 2010 for the Outlook cache should be: C:\Users\*Username*\AppData\Local\Microsoft\Windows\Temporary Internet Files which you will only be able to see if you have the "show hidden files and folders" and have unchecked the "Hide Protected Operating System Files" option.  You can check where the cache is by looking at the registry key HKCU\\Software\Microsoft\Office\14.0\Outlook\Security\OutlookSecureTempFolder which shows the full path.

Once I've cleared on the cache the problem doesn't seem to return either, it's all very odd.

So do you know if this issue is being investigated by Microsoft, with a view to providing a definitive fix via a patch or SP?

Whilst I understand your comments around moving the folder to an easier to find location to enable the manual clearing down, and in a single user environment something that I'd also say is a good idea in the interim, this obviously isn't an enterprise solution and not something that I can advise our very our large userbase to start doing.  This is further exasperated by the fact this issue has only seemingly been introduced in Office 2010/Windows 7 (I'm assuming it's a Office 2010 issue, but we started upgrades to both in parallel), so is causing problems with trying to get people to migrate onto the newer and 'better' platforms.

Thanks for the reply though, and any other useful information would be greatly appreciated.

Thanks,

Tim.

Whilst I understand your comments around moving the folder to an easier to find location to enable the manual clearing down, and in a single user environment something that I'd also say is a good idea in the interim, this obviously isn't an enterprise solution and not something that I can advise our very our large userbase to start doing.

It still occurs in Outlook 365 - exactly the same problem that you have described.  I have been chasing around various forums for several months now trying to find a solution (none has worked).  Isn't it about time Microsoft stepped up and provided a definitive fix?

Meanwhile, I have an OutlookSecureTemp file which ostensibly has nothing in it, but still no nearer to displaying .png files embedded in emails.  Is there a trick to clearing this file?