Sort problem in shared excel file
 

Hi,

I do have a problem with a shared excel file.

Althought I am single using this shared file I constantly get an error
1004 when I run a macro to sort.

The macro looks like this:

Sub Sorteer()
Range("M11:AE55").Select
Selection.Sort Key1:=Range("M11"), Order1:=xlAscending,
Key2:=Range("N11" _
), Order2:=xlAscending, Header:=xlGuess, OrderCustom:=1,
MatchCase:= _
False, Orientation:=xlTopToBottom
Range("M11").Select
End Sub

The error message is in Dutch but when I translate it should be
something like:

"For this operation all merged cells must have the same size"

In the sort range are no merged cells.
=================
When I do it manualy, with only 2 cells, I get the same error message.

What is my problem???

Thanks in advance

Jan

Sort problem in shared excel file