Absolutely fine now, thanks for all your help.

Thank you so much for all those instructions and it worked almost perfectly. There is still a couple of problems though, Opera will not recognise my outlook.com account and I cannot send or receive anything in my isp email pop3 account which I use all the time. Using their webmail is painfully slow so I really would like to get it on Opera. All the sent emails go into the outbox and sit there and nothing comes in although webmail is working perfectly consequently I got short shrift from their help line

My POP3 account mail is retained on the server, I have also a Gmail account plus an Outlook.com account (what happens to the mail of the last two I don't know - are they retained anywhere). I'm not too worried about the Outlook one but I would not like to lose the gmal mail. I know all the p/w. I have Windows 10 with the FCU - never been the same since that trashed my hard drive and I had to have a new one, Nothing has been straightforward since and can't even update Windows at present. I've never been so frustrated in the 20 odd years of using my PC. I would really like guidance through the next stage please.

Thanks for replying so quickly. Yes I uninstalled the original thoroughly or so I thought using IObit. I don't know if it removed the old profile which looks a bit scarey to me to deal with! I clicked on the wrench and there is nothing labelled All Messages. I refreshed from the next door icon where there is All Messages but this did not do what I am looking for. I then clicked on reset but nothing changed. Oh dear.

For various reasons I have had to re-install Opera Mail and this time I just cannot get a unified Inbox (Received Folder), please can anyone help - I have just spent 4 hours trying to solve the problem.

I have just re-installed Opera Mail on my New hard drive (Windows FCU trashed my old one - repairs cost me £200 thanks Microsoft) When I open the mail program it does not go to the first email shown, always half way down the page and therefore I have to scroll to the top. Not a major issue but annoying. Anyone got a tip please.