I decided to try once more Kopete in its KDE 4 version and get rid of almost every QT3 software in my computer, but again, as in previous switches to QT 4 versions I'm having several problems that make Kopete rather "clumsy":
- Theres no "check inbox" option for MSN accounts nor Gmail (well, in QT3 version never was such an option for Gmail either, it would be a good idea, in fact I think many Hotmail users would swith to Gmail definitely)
- No popup message warning of a new mail arrived (well, rather previsible if it can't check the inbox)
- Deleting contacts just don't work, when I log in again, there they are.

Are these common problems everybody is experiencing or I'm just an unlucky guy?

Thanks and regards.

Being unable to delete contacts is a known bug unfortunately: https://bugs.kde.org/show_bug.cgi?id=122996
The Popup message is probably related to the missing Check Inbox option. I would not be surprised if this was removed because it was too network specfic, you may wish to ask the Kopete developers, or file a feature request.

I would add my personal list of things I miss or don't work with Kopete:

GTalk seem not to work in KDE4.2.1 it completely didn't work in normal KDE4.2.1, but with Qt4.5 it does work it's just always connecting...
I just can't get file transfering to work (again Gtalk). But it might be me or my net-connection as I can't get that to work in Pidgin, but I'm really "clumsy" when using GTk apps
Well that's that for now

It seems that Kopete dosen't work because of my distro choice (kopete has no telepathy support, so no Jabber. This is because arch version of qt-telepathy is too old.)
So sort-of solved... for me.

Here's my rather bizarre problems with Kopete:

1) Kopete will not remember what group I am moving my AIM contacts into.
2) It won't remember that I've approved a contact in MSN.
3) Yahoo Instant Messenger connects and disconnects constantly.

I just have to report that I got GTalk working. I had to change server from gmail.com to talk.google.com. And now it works!
No more problems for me

Does anyone here managed to get jabber conferences working with GTalk?