Version:            (using KDE Devel)
Installed from:    Compiled sources

I can reproduced this bug both with KMail KNode and Kopete.
It is realy visible on Kopete

The original report is the Bug 84638  but i fill a new one because that one is poluate with some usability issues.

When you drag somethings over itmes in a list view. the mouse cursor might be valid if you can drop the itm there. or invalid if you can't (you see a black round with a /)
depending the result of KListView::acceptDrag()

The problem is that if the cursor become valid on one item, it stay valid on every item.

TO REPRODUCE:
In Kopete: Start drag a metacontact. you can't drag it to another Metacontact so the cursor stay invalid if you are on metacontacts.  If you are over a group: the cursor become valid (Normal).  But if you go back over others metacontact: the cursor is still valid. (Bug)

In Knode:  take a random post, and go over the different newsgroup. you can't drop it there, so the cursor is invalid (Normal).  Now, go over the folder "Draft" you can drop it, the cursor became valid (Normal).  return in the different newsgroup, the cursor is valid.

It's maybe also a bug in QT.