Webmail not showing images,only HTML

[Klindar]

We have several computers. On one computer ONLY images in received emails show as HTML markup ONLY (gibberish). There is NO yellow bar saying "Display Images". Same result on 4 different browsers (using Firefox normally). If the email is forwarded to ANOTHER computer, images display as expected. Evidently some email setting is involved but have not been able to discover what it is despite much experimentation.

Any assistance appreciated.

[mdk]

@Klindar -- is that one computer running Windows 7? 8? 10? 11?

On it, what E-mail program are you using to view your messages? Windows Mail? Microsoft Outlook? Thunderbird? Gmail? other?

Do those programs have a "reset all settings to their default" option?

Same result on 4 different browsers (using Firefox normally)

Does that imply that you are using Shaw WebMail within all 4 browsers?  The "settings" for your account within Shaw WebMail are not specific to whatever web-browser you are using. Those settings apply for any web-browser that is accessing your E-mail ID.