I can confirm, the bug is still present for a tint2 version 0.11-2 (debian packaged version).
Tested with Openbox WM and Skype. At first, Skype tray icon appears normally in the tray. After some restarts of Skype (I cannot specify the steps to reproduce with 100% certainty) the icon no longer appears after skype starts and the symptom is exactly as described above: error_handler 8 tint2 : not icon_swallow Killing and restarting skype or tint2 process is not a solution. Only after a complete X session termination (user logout & login) the icon for skype reapears in the tray, until the problem occurs again. (using tint2 & openbox with gnome2 & gnome daemons, and skype via debian packaged pidgin-skype plugin) ii pidgin-skype 20110407+svn612+dfsg-1 ii skype 2.2.0.25-1 ii tint2 0.11-2 ii libatk1.0-0 1.30.0-1 ii libc6 2.11.2-10 ii libcairo2 1.10.2-6 ii libfontconfig1 2.8.0-2.1 ii libfreetype6 2.4.2-2.1 ii libglib2.0-0 2.28.4-1 ii libgtk2.0-0 2.24.4-3 ii libimlib2 1.4.2-8+b2 ii libpango1.0-0 1.28.3-1+squeeze2 ii libx11-6 2:1.3.3-4 ii libxcomposite1 1:0.4.2-1 ii libxdamage1 1:1.1.3-1 ii libxfixes3 1:4.0.5-1 ii libxinerama1 2:1.1-3 ii libxrandr2 2:1.3.1-1 ii libxrender1 1:0.9.6-1 -- Jan Jansky -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org