DataGridViewCell issue with changing colors

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VB

WinForms

.NET4

I've been playing around with this fairly simple issue for quite a while and have decided I just need someone else to look at it. I have a DataGridView with a checkbox column in it. When the box is unchecked, I want a different cell in the row to be ReadOnly and the BackColor to be light gray. When it's checked, I want that cell to not be ReadOnly and the BackColor to be white. The ReadOnly bit is working fine, but I'm having trouble with changing the colors. When I uncheck a box, it turns light gray and ReadOnly just fine. But if I CHECK the box, it doesn't change back to white. I type something and then leave the cell and THEN it turns white. I tried a couple of different things to no avail and now I'm just to frutrated to think straight. Here is what I've got for code:
(colAction is the checkbox column, conststrRecordedProduction is a string constant with the name of the cell that I want to change color.)

Private Sub dgvCommingledProd_CellMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles dgvCommingledProd.CellMouseClick
    If e.Button = Windows.Forms.MouseButtons.Left Then
        If e.RowIndex = -1 Then
            'Header row do nothing
        Else
            'Not header row - make sure just one row is selected
            If dgvCommingledProd.SelectedRows.Count = 1 Then
                'Determine which column was clicked
                If e.ColumnIndex = dgvCommingledProd.Columns(colAction.Name).Index Then
                    'Check or uncheck the box
                    dgvCommingledProd.SelectedRows(0).Cells("colAction").Value = Not dgvCommingledProd.SelectedRows(0).Cells("colAction").Value

                    'If it's not the row header...
                    If e.RowIndex <> -1 Then
                        With dgvCommingledProd.Rows(e.RowIndex)
                            If .Cells(colAction.Name).Value = True Then
                                'User checked the field, set focus to the production column
                                .Cells(conststrRecordedProduction).ReadOnly = False
                                dgvCommingledProd.CurrentCell = dgvCommingledProd.Rows(e.RowIndex).Cells(conststrRecordedProduction)
                            Else
                                'User unchecked the field, clear the value
                                .Cells(conststrRecordedProduction).ReadOnly = True
                                .Cells(conststrRecordedProduction).Value = DBNull.Value
                            End If

                            'Set the cell's color
                            Dim temp As DataGridViewCell = dgvCommingledProd.SelectedRows(0).Cells(conststrRecordedProduction)
                            SetProductionCellStyle(temp)

                        End With
                    End If
                End If
            End If
        End If
    End If
End Sub

Private Sub SetProductionCellStyle(ByRef dgvc As DataGridViewCell)
    If dgvc.ReadOnly Then
        'It's read only, grey it out
        dgvc.Style.BackColor = Color.LightGray
        dgvc.Style.SelectionBackColor = Color.LightGray
        dgvc.Style.ForeColor = Color.Black
        dgvc.Style.SelectionForeColor = Color.Black
    Else
        'Use white & black
        dgvc.Style.BackColor = Color.White
        dgvc.Style.SelectionBackColor = Color.White
        dgvc.Style.ForeColor = Color.Black
        dgvc.Style.SelectionForeColor = Color.Black
    End If
End Sub

I can see when debugging that it's hitting the code to set the backcolor to white, but it's just not showing on the screen until later. Can anyone tell me what is happening and/or how to work around it?

*** UPDATE ***Okay, so if I comment out the line where I'm setting the current cell to the column when the box is checked in the action column, then the color change seems to work properly.

'Commented out this line:
dgvCommingledProd.CurrentCell = dgvCommingledProd.Rows(e.RowIndex).Cells(conststrRecordedProduction)

So...maybe my question should be how can I set focus to the other column without interupting the color change?