In Excel 2003, just installed with all updates ...

When I attempt to insert a new object Excel wont let me! I
am using a Barcode application and their instructions are
as follows:

1. A short description of how to add a barcode to your
Excel sheet: First launch Excel and create a new sheet or
open an already existing sheet. Now go to the
menu "Insert" and select "Object..." from that item list.
(screenshot on the right)
2. A dialog box appears: Select now "ActiveBarcode" and
click "Ok". Now a barcode will be created inside your
document. This will be a standard barcode of EAN-13 type.
Next change to the "design mode" of Excel (e.g. use this
button:). Now you can modify this barcode. You can change
the type, text, colors etc. For this click inside the
barcode with the right mouse button.
3. A pop up menu will open: Select "ActiveBarcode-Object"
and then "Properties...". The property dialog of
ActiveBarcode will open. Here you can modify the barcode
as you like.

...........so everything work until I click OK in step 2
and then Excel displays "CAN NOT INSERT OBJECT" So is
there some property or security setting or something else
I'm missing? I am a novice so step-by-step help would be
appredciated!!! Runing WINXP Pro, totally updated. Thanks!