System.IO.DirectoryNotFoundException: Could not find a part of the path "\\128.102.3.239\ifs\esat_png\0\0079\0079_0065_72.52.98.6_633324688528348750.tif".
   at System.IO.__Error.WinIOError(Int32 errorCode, String str)
   at System.IO.FileInfo.Delete()
   at lstile.WebForm1.CreateTile(Int32 level, Int32 row, Int32 col, String file)
   at lstile.WebForm1.Page_Load(Object sender, EventArgs e)