Invisible Character

15 minutes before server downtime i started a new char (witch).
For a few minutes my char was invisible for me (but not for the mobs).
So i made some nice screenshots from an invisible flamethrower:

http://imageshack.us/g/1/9986183/

Edit: Happens everytime i login (from windows) with my witch or shadow (not with other classes)

My char and some other chars (in Lioneye´s watch) are invisible for me.
I just can see the items we wear.
When i enter Terraces i get visible again and stay like that when i go back to LW.

Bugreportnumber: 4183986449 http://img407.imageshack.us/img407/8764/4183986449.png

Win7/64bit
i5-760
Radeon 6950 (Catalyst 13.1)