I searched around the forums with no real success in matching the symptoms that I observed, so I am posting to see if I can get something going. There are obviously any number of variables when comparing configurations on client machines, so I am not expecting a direct solution, just hoping that maybe someone else has seen this issue.
I have over 10 new Jabber installs on similarly built PC hardware and software, running Windows7. Two of the PC's have displayed an issue where upon launching Jabber, a blank white window (no Windows borders) appears in front of the Jabber login window, and cannot be moved. Jabber version for this install was 9.1.3. Task Manager reveals that there are 2 Jabber processes running. Kill one, and the main window goes away. Kill the remaining and the white box goes away.
Attempted the same install with 9.2.4 and got a slightly different result. Now the window appears to be of zero size, but due to the shading of the window edge, it still appears as a small "smudge" on the screen. Sometimes it stays in front of windows, sometimes it doesn't. All of this is completely repeatable on 2 PC's of the group.
Tried disabling Aero, completely removing and re-installing, different versions (besides 9.1.3 and 9.2.4), and can't seem to find a resolution to this. Has anyone else see something like this? Everything still works just fine, and for most users, the effect is negligible (except for the 9.1.3 install), but stuff like this is always cause for concern that it could cause confusion with our users. Thanks for any help. Screenshots are attached.