Other products with good reviews are Orange Glo and Abbey laminate floor cleaners. The Bruce Floor Cleaner for Laminate Floors that is mentioned above is also recommended by users.
If you already have a buildup from other cleaners that you've used, you may need to use a purchased product to get it off. Try the recipe above first and if it doesn't work, try Bruce Laminate Floor Cleaner. Don't walk on the floor for one hour after using. If the buildup still isn't off, do it again. Then clean with the vinegar and water solution above.