Comparing Cell Values In Two Worksheets

I am aware this question must have been asked to death on this forum and I already searched and found some answers but for some reason I can´t get it to work. I have two worksheets (sheet1 and sheet2). In Column E of Sheet1 I have product descriptions that I want to compare cell by cell to the product descriptions in Column F of Sheet 2. If they are not the same, color in the cell in Sheet 2. There are 1810 rows in both columns. I tried this method but it gives me an error (in spanish) that says that I cannot compare ranges of data.

I have also seen some code to do something similar (http://www.ozgrid.com/forum/showpost...85&postcount=3 ):

Sub find_cell()
Range("A:E"). Find(What:=Cells(2, 6).Value, LookAt:=xlPart).Activate
ar = ActiveCell.Row
ac = ActiveCell.Column
' the two lines above store the row and column values of the cell found
' in your example ar is going to be equal to 229 and ac is 3
' now this following lines are to change the colors to red
With Cells(ar, ac).Interior
.ColorIndex = 3
.Pattern = xlSolid
End With
End Sub

I don´t quite get the "Range("A:E").Find(What:=Cells(2, 6).Value, LookAt:=xlPart).Activate" part though.