Created attachment 48789 [details]
This screenshot tells you more than I can.

Version:           1.0.0 (using KDE 4.4.2) 
OS:                Linux

If your contact list contains users with huge avatars (images\photos) then when they type to you and the message is arriving, knotify (KDE notification sub-system) will show you full-size image. Many XMPP servers has no limits of image\photo\avatar size, and if user able to set huge image - kopete & knotify will show it huge too.

Reproducible: Always

Steps to Reproduce:
Someone need to set big image in his jabber account avatar. And then he must type and send you any message.

Actual Results:  
If your Kopete uses Knotify, then you'll see this huge image in message when it comes to you.

Expected Results:  
The huge image\avatar\photo size of the user, who send messages to you, must be decreased by a Knotify concepts (50x50 or something).

The tips of the JID in kopete contact list will show huge image too, if owner of this JID did not set a small image.