http://bugs.winehq.org/show_bug.cgi?id=21110
--- Comment #6 from Andrew Nguyen arethusa26@gmail.com 2010-04-02 21:58:01 --- Indeed, I see in wine-1.1.42:
System.OverflowException: Number overflow. at System.Drawing.SizeF.ToSize () [0x00000] at System.Windows.Forms.MessageBox+MessageBoxForm.InitFormsSize () [0x00000] at System.Windows.Forms.MessageBox+MessageBoxForm.RunDialog () [0x00000] at (wrapper remoting-invoke-with-check) System.Windows.Forms.MessageBox/MessageBoxForm:RunDialog () ...
I have opened bug 22249 for the regression.