I created an application that has a form that displays a tablelayout panel. I use application scoped settings to remember the location of the tablelayout panel from the previous run. The reason I use application and not user is because someone with admin rights has the abilty to change the tablepanel location at runtime and I want these settings to be remembered for limited users.

When I run the application on the client machine, and I click on the form for some reason the tablelayout panels shifts to a another position. When I restart it goes back to the correct position. I can repeat the error and it will shift to the other position (the error position is always the same).

I dont have much click logic, I have logic that maximizes and minimizes the form on double click but even with commented out it still happens. The error definitely is on a single click anyway.

The only other code I thought might be an issue is that I extend the control to be draggable. It would make sense if this caused it but even with this commented out the error still occurs.

The biggest issue debugging this is that it only seems to happen on the client machine. I cannot reproduce the error on my dev machine or even another pc that I own. Plus it is difficult to test cause I have limited access to the client site.

I'm really at a loss as to how to get to the bottom of this error.