Additional information:

I am running 35.0.2066.37. Opera is listed within the Apps & features list within Windows settings. Opera is not listed as an app within the Control Panel's set your default program.

My default browser changed to Edge after a recent Opera auto update. When I try to make Opera the default browser, by using the Opera settings feature or the Windows default app settings, I do not see Opera listed. I did see Opera listed before the upgrade and it was selected as my default browser.

I would appreciate assistance on setting Opera as my default browser.

Thank you for your suggestions.

I did everything you outlined and I am still experiencing the same delay when 'opening' a message. Please let me know if you have any other suggestions.

Take care,
Bill

I have checked and cleaned up my hard drive, but it wasn't bad.

I have learned that I can retrieve the delayed messages instantly by simply closing and restarting Opera Mail. Any other suggestions?

Thank you.

I have the system set to check for messages every 10 minutes and the other options are not selected. I will change the default back to messages available off-line.

More to the point, I will follow you instructions in the last paragraph. Hopefully this will have a positive impact.

I experienced the delay again today; a message body took over three minutes to load. During that time I hit the refresh button a couple of time with no results. While I was waiting I went into my account setup to look at the message option. I have it set to 'Do not make messages available off-line'. I set it to this option the other day thinking it would be quicker.

While I was looking at my account details I noticed that the close button wasn't working. I needed to click on the 'X' in the upper right hand corner to exit the boxes.

Any suggestions or thoughts?

I am interested in this also.

I have that option set to 'Make messages available offline when I click them'. I think this options displays the header but doesn't get the body until I click on the header. The delay happens once I click on the header. Should I use another setting?

I also verified that the low bandwidth option is not enabled; neither is 'Do not fetch message attachment'.

I don't understand the implications of IMAP but I do know this issue isn't consistent. Also, I have an IOS device and their default mail system doesn't experience the issue. I share this because it leads me to believe the issue isn't with my mail server or host (whichever term may be appropriate); but I could be wrong.

Please let me know if you have other suggestions.

I may have found the settings. Are they the ability to work offline options within the incoming server section? If so, which selection should I make if I would like to have access to the emails yet avoid the extended delay I have been experiencing?

Take care,
Bill

I have an IMAP account. Could you please direct me to the settings you referenced? I just checked and didn't find them; but I will keep looking.

Take care,
Bill