OK, make sure that you are deleting random rows (not all in one block).

Also insert randomly as well.

Failing that, you could create a new table with a GUID as a PK and then insert records:-

CREATE TABLE dbo.[FragTest]

(ID UNIQUEIDENTIFIER PRIMARY KEY,

NAME CHAR(4))

INSERT INTO dbo.[FragTest]

SELECT NEWID(), 'TEST'

GO 10000

I've run this on my local instance and it gave me 96.6% fragmentation. You may want to insert more records than I did for a complete test.