Try first turning off screenupdating and switching calculation to manual (don't forget to switch back at the end)

--
Tim Williams
Palo Alto, CA


"artisdepartis" wrote in message oups.com...
Dear All,


Below is my code for comparing 2 lists.
As i am working in an enviroment with very small dataresources, i am
used to things being slow... However, my code is ultra slow atm. Any
ideas on speeding it up or should i call my techsupport *again* to ask
for more memory?

Dim lastRow As Long, rw As Long
Dim rngA As Range ' rngA = first list of data

Set rngA = Range(Sheets("Deltas").Cells(1, "A"),
Sheets("Deltas").Cells(Rows.Count, "A").End(xlUp))

lastRow = Sheets("ODIS").Cells(Rows.Count, "A").End(xlUp).Row ' = end
of 2nd list of records
MsgBox lastRow
'rw writes the results on Deltas
rw = Sheets("Deltas").Cells(1, "E").End(xlUp).Row
'MsgBox rw

For i = 1 To lastRow Step 1
If Application.CountIf(rngA, Sheets("Deltas").Cells(i, "F").Value)
= 0 Then
Sheets("Deltas").Cells(rw, "G").Value =
Sheets("ODIS").Cells(i, "C").Value
Sheets("Deltas").Cells(rw, "H").Value =
Sheets("ODIS").Cells(i, "E").Value
Sheets("Deltas").Cells(rw, "I").Value =
Sheets("ODIS").Cells(i, "G").Value
Sheets("Deltas").Cells(rw, "J").Value =
Sheets("ODIS").Cells(i, "H").Value
rw = rw + 1
End If
Next