When opening a database object in design view an error occurs but after cancelling the dialog box all seems to work OK.
However, after this error the layout of open windows is forgotten and on re-opening the solution the editor window is empty.
I have attached an activity log, the final entry in which says 'System.ArgumentException: The path is not of a legal form.
' and suggests that the source is CodeRush.
Please take a look at the log and suggest what I might do to stop the error occurring. This problem is not critical more of an annoyance.
Thanks in advance for your help,