I was having the same problem. Every time I would logout it was reseting itself about a inch to the left from where I keep trying to put it. What I did was hit the reset position then set the anchor to TOP instead of TOPLEFT then reposition and that seemed to fix it. Give it a try and let me know because it would be nice to get a idea of whats causing it. It seemed like it was trying to center itself in my rightmost eepanel no clue why.
This did not seem to work. However, I think its tied to it somehow because when it was set to the TOPLEFT, when I logged on it would be to the left and up a little bit from where I put it. Now that I set it as TOP, its just above where I put it...not off to the left at all.
I thought maybe it I moved it down further it would set itself where I wanted it. Unfortunately, this didn't happen. It resets in the same position no matter how low I position it.