Version: 0.70.90 (using 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1)) "release 139", KDE:KDE4:Factory:Desktop / openSUSE_11.1) Compiler: gcc OS: Linux (x86_64) release 2.6.30-48-default This is not a bug, but an annoyance. When you're chatting and someone sends you a link, an image or whatever, kopete locks for a while until the transmission of this link/image is complete. You can't even type in anything for, in my case, a couple of seconds. It would be nice to have some asynchronicity there.
Dear user, unfortunately Kopete is no longer maintained. Please migrate to another solution, e.g. for Jabber a possibility is Kaidan, for Matrix a candidate is NeoChat.