iTunes for Windows displays gray boxes instead of images

iTunes Support was able to provide the solution to this issue.

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If your device is using Windows 7, 8 or 10:

1. Press Windows + R key

2. Enter 'dpiscaling.exe' without the quotes and click OK in the Run window

3. Look for a setting like 'Change the size of text, apps, and other items' - usually expressed as a percentage (125% - 200%)

4. Set the setting to 100%

5. Log out

6. Test on next login.

Note: The log out step is mandatory for any of the other steps to apply on next use of iTunes.

If the issue persist after doing the steps above, please contact our Technical Support team for further assistance.

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Thanks to Erika at iTunes Store Customer Support

The link provided does not give a solution. It includes a link to another thread. That thread is about another problem, not gray boxes appearing in the store.

Still looking for an answer to gray boxes for album art in the iTunes music store, movie store, audiobook store, etc.

This isn't a connection issue. Network speeds of 764.74 Mbps and 673.79 Mbps should be plenty adequate.