FYI, I went ahead and stripped out your references and replaced them with v7.3 infragistics (what I have on my dev machine), and the problem does not occur on my machine. Do you have any machines at your office on an older version of infragistics? Perhaps it is something in the newer version that is causing the disconnect?

Hi Dustin,

Thanks for trying it out, unfortunately I do not have v7.3, but calling Me.RestoreSizeAndLocation() after MyBase.OnLoad(e) in the MainForm does the trick and I believe that is a proof of an instantiation timing issue, don't know if something could be done in the SF source to prevent this issue with this control or any other in this case.

Could it be possible for you to install the new infragistics trial for further testing? Now that I have a custom fix there is no rush on this on your part

Edhy Rijo