As requested, I have attached a copy of the source code (bsProposalGenerator.vb), the source slides and an example generated presentation containing the issue (x80750_2825 Resulting PPT.ppt) with the box surrounding the title.
If it is any help, the problem appears to occur in this example when we attempt to clone slides from a combination of the 'FORMATTED Pru_Prog Ass_DeliverableDONE.ppt' and any other of the presentations which I have attached.
The VB source code attachment is quite long but the main areas of code of interest are as:-
Protected NewPresentation As Presentation
' Load the base Powerpoint presentation containing the master slide for the presentation style.
' This will be the presentation containting the inital slide for the Cover section.
NewPresentation = LoadPowerPoint(strPathToMasterPresentation)
Dim presSource As Presentation
presSource = LoadPowerPoint(strPath)
slide = presSource.GetSlideByPosition(intPosition)
Dim s1 As Slide = presSource.CloneSlide(slide, NewPresentation.Slides.LastSlidePosition + 1, NewPresentation, tempList)
Thanks in advance for looking into this.