New Post: Hyperlinks worked, then quit working...

Here's a code snippet; does anything look incorrect?

ICell cmdLineCell = row.GetCell(4);
cmdLineCell.SetCellValue(fullPath);

string uriDir = Path.GetDirectoryName(fullPath);
Uri linkAddr = new Uri(uriDir);

try
{
    link.Address = (linkAddr.AbsoluteUri);
    cmdLineCell.Hyperlink = (link);
    cmdLineCell.CellStyle = (hlink_style);
}
catch (Exception)
{
    Console.WriteLine("******* ERROR CREATING HYPERLINK *********");
}

XSSFHyperlink link = new XSSFHyperlink(HyperlinkType.File);