Sorry for double posting, but I believe it's OK, since it's been few days since I wrote previous message.
I just meant to add that I tried newer Opera version, and although we can say that those do work on my phone, that's not it. I have uninstalled Opera Mini 8 from the phone, and I got back to Opera Mini 4.5. It's just that a phone with 32MB of RAM can't run Opera Mini 8 smoothly enough, and there are more stuff being affected by this:
-when I load a page, first I see a white blank page, and I need to wait some time for the page I am trying to visit to show. It is possible that the problem would be reduced if I cleared user data of Opera, as this isn't that much a problem at first, but by time it starts making problems like this. Also, it's pretty bad if I need to clear all user data every few days.
-when I run Opera from shortcut it won't start. This starts to happen after some time of using Opera. To fix this I can restart the phone; or I can start Opera Mini from Games and apps, but even that way the problem would reappear I wouldn't be able to start Opera mini that way as well. One way or another, restarting the phone become necessary.
If I remember something else, I will come back, and type it down.
As about Opera Mini 4.5, if you could fix that excessively sliding, it would be just perfect! It doesn't have a lot of options, such as browsing with more tabs, but those of us with phones like this don't need it. If only this one detail could be fixed, this Opera would be perfect! Now when they stopped supporting Nokia Xpress, and when Opera Mini 8 takes too much resources, an updated Opera Mini 4.5 would be a real treasure to us!