GDI+ Generic Error While Saving Image

[Redth]

hey guys, i'm getting a Generic GDI+ error when saving an image to a filepath... The reason this is so odd, is the first image which i make (bmpNew) is where i get the error... however, the second image (bmpNewThumb) saves perfectly fine... both images are just sizes of the main image (bmpMain)

anyways, here's my code.. i've been picking through it forever and can't seem to find what's wrong...

' Declarations
                    Dim intWidth As Integer
                    Dim intHeight As Integer
                    Dim sizeMain As SizeF
                    Dim sizeNew As SizeF
                    Dim sizeNewThumb As SizeF
                    Dim fScale As Single
 
                    ' New Bitmaps for modified images
                    Dim bmpNew As Bitmap
                    Dim bmpNewThumb As Bitmap
 
                    ' Get Uploaded picture
                    Dim bmpMain As New Bitmap(filePicture.PostedFile.InputStream)
 
                    'Get the original size of the picture
                    sizeMain = New SizeF(bmpMain.Width / bmpMain.HorizontalResolution, bmpMain.Height / bmpMain.VerticalResolution)
 
 
                    ' Create the Main Picture and save it
                    ' Set the maximum picture width
                    intWidth = 200
                    intHeight = 200
 
                    'Always resize this image, to keep things constant
                    If CInt(sizeMain.Width) > intWidth Or CInt(sizeMain.Height) > intHeight Then
 
                        'Get scale at how to change image
                        fScale = Math.Min(intWidth / sizeMain.Width, intHeight / sizeMain.Height)
 
                        'Get new image size
                        sizeNew = New SizeF(sizeMain.Width, sizeMain.Height)
 
 
                        ' Calculate the new height and width
                        sizeNew.Width *= fScale
                        sizeNew.Height *= fScale
 
                        'Get Thumbnail
                        bmpNew = bmpMain.GetThumbnailImage(CInt(sizeNewThumb.Width), CInt(sizeNewThumb.Height), Nothing, Nothing)
                    Else
                        bmpNew = bmpMain
                    End If
 
                    'Finally save the image
                    bmpNew.Save(ConfigurationSettings.AppSettings("ImageDataPath") & lblProductID.Text & "_TEMP.jpg", Drawing.Imaging.ImageFormat.Jpeg)
 
                    'Create the Thumbnail Image
                    'Set Thumbnail dimensions
                    intWidth = 75
                    intHeight = 75
 
                    'Always resize this image, to keep things constant
 
                    'Get scale at how to change image
                    fScale = Math.Min(intWidth / sizeMain.Width, intHeight / sizeMain.Height)
 
                    'Get new image size
                    sizeNewThumb = New SizeF(sizeMain.Width, sizeMain.Height)
 
 
                    ' Calculate the new height and width
                    sizeNewThumb.Width *= fScale
                    sizeNewThumb.Height *= fScale
 
                    'Get Thumbnail
                    bmpNewThumb = bmpMain.GetThumbnailImage(CInt(sizeNewThumb.Width), CInt(sizeNewThumb.Height), Nothing, Nothing)
                    bmpNewThumb.Save(ConfigurationSettings.AppSettings("ImageDataPath") & lblProductID.Text & "_TEMP_THUMB.jpg", Drawing.Imaging.ImageFormat.Jpeg)

like i said, the bmpNew.Save is the line where i'm getting the error... it just doesn't add up to me... :/ thanks for the help!