Defining a range

Hi guys. I'm stumped again. I'm working with this bit of code I found that basically detects the last row and column of a table and defines the whole area as a range. What I want to do is modify it so it detects the last row, but uses a pre-defined column instead of going to the last column. In short what I'm trying to do is copy two formulas from cells C2 and D2 down to the last row of data. Note, there is data on both sides of C and D.

    Application.ScreenUpdating = False
    Dim myLastRow3 As Long
    Dim myLastColumn3 As Long
    Range("A1").Select
    On Error Resume Next
    myLastRow3 = Cells.Find("*", [A1], , , xlByRows, xlPrevious).Row
    myLastColumn3 = Cells.Find("*", [A1], , , xlByColumns, xlPrevious).Column
    myLastCell3 = Cells(myLastRow3, myLastColumn3).Address
    myrange3 = "c2:" & myLastCell3
    Application.ScreenUpdating = True
    Range(myrange3).Select

I tried substituting the column letter in place of "mylastcolumn" but I'm guessing I'm using the wrong syntax.

Can anyone offer some advice?

Oops! I accidentally found the answer. All I had to do was put the column letter in "" marks.

Thanks!