When execute file->New action some times and some computers Scalerv has raising an error "list index out of bound(1)/bound(-1). (We haven't got any code of onexecute event) This error raise at code block begin 10458 and end 10480 at SclrView.pas
I had a problem similar to this, and solved it disabling the actions (using RVAControlPanel) before loading the document, and enabling them again just after.
I do not think it was caused by an error in a document, but by a bug in my program, that has several problems - for instance, there were several RVAControlPanels in the project, that I have recently removed. In any case, I had problems loading files, that went way when I disabled temporarily the actions. If you wish, I can try to isolate the error - if there is still an error.