Excel 2007 : Border formatting question: vertical border in front of horizontal?

I am trying to figure out if it is possible to have the horizontal borders in a worksheet behind the vertical borders. For example, I have white horizontal borders and black vertical borders. The default is that the white horizontal borders cross-over the black vertical borders. It looks like the vertical border is dashed, as it is interrupted by each horizontal border.

Is it possible to have the black vertical borders cross over the white horizontal borders, in-essence, sending horizontal borders "to back"?

I am using Excel 2007.

I am using 2007 also and set up a spreadsheet just like you discribe, but did not get the dashes.