Iam trying to create a loop that searches through a table of columns
and rows to zero and negative values. My columns portion of the code
is causing an error. How should I change the code to have it work
properly.

Sub Search()
LastColumn = "R"
NewColumnCount = "F"
For ColumnCount = NewColumnCount To LastColumn
LastRow = 54
NewRowCount = 38
For RowCount = NewRowCount To LastRow
If Range(ColumnCount & RowCount) < 0 Then
Range(ColumnCount & RowCount) = 0
NewRowCount = NewRowCount + 2
End If
Next RowCount
NewColumnCount = NewColumnCount + 2
Next ColumnCount
End Sub

Frank