OK, well this one copies ALL charts from ALL Chart Sheets, and then ALL charts embedded in EACH worksheet.
You need to set a reference to 'Microsoft PowerPoint 12.0 Object Library' in the VBE via Tools > References...
Paste the code below into a code module in Excel.
Sub PushChartsToPPT()
'Set reference to 'Microsoft PowerPoint 12.0 Object Library''in the VBE via Tools > References...' Dim ppt As PowerPoint.Application
Dim pptPres As PowerPoint.Presentation
Dim pptSld As PowerPoint.Slide
Dim pptCL As PowerPoint.CustomLayout
Dim pptShp As PowerPoint.Shape
Dim cht As Chart
Dim ws As Worksheet
Dim i As Long
'Get the PowerPoint Application object: Set ppt = CreateObject("PowerPoint.Application")
ppt.Visible = msoTrue
Set pptPres = ppt.Presentations.Add
'Get a Custom Layout: For Each pptCL In pptPres.SlideMaster.CustomLayouts
If pptCL.Name = "Title and Content" Then Exit For
Next pptCL
'Copy ALL charts in Chart Sheets: For Each cht In ActiveWorkbook.Charts
Set pptSld = pptPres.Slides.AddSlide(pptPres.Slides.Count + 1, pptCL)
pptSld.Select
For Each pptShp In pptSld.Shapes.Placeholders
If pptShp.PlaceholderFormat.Type = ppPlaceholderObject Then Exit For
Next pptShp
If pptShp Is Nothing Then Stop
cht.ChartArea.Copy
ppt.Activate
pptShp.Select
ppt.Windows(1).View.Paste
Next cht
'Copy ALL charts embedded in EACH WorkSheet: For Each ws In ActiveWorkbook.Worksheets
For i = 1 To ws.ChartObjects.Count
Set pptSld = pptPres.Slides.AddSlide(pptPres.Slides.Count + 1, pptCL)
pptSld.Select
For Each pptShp In pptSld.Shapes.Placeholders
If pptShp.PlaceholderFormat.Type = ppPlaceholderObject Then Exit For
Next pptShp
Set cht = ws.ChartObjects(i).Chart
cht.ChartArea.Copy
ppt.Activate
pptShp.Select
ppt.Windows(1).View.Paste
Next i
Next ws
End Sub
Hope that helps.
Cheers
Rich