Menu item “Catalog-> manage categories” freezes (becomes completely white and can not be used anymore).
I work in Magento ver. 220.127.116.11. and have posted some categories and products into the shop. Store works just fine.
Problem is that when I want to add more categories into then screen at the “Catalog - manage categories” the hole page gets white, and no categories or content elements are shown.
4 times I have deleted Magento shop and database entirely and started allover again, but I get the same result, namely that I can not Opet or service categories.
I have set permissions to all files and folder in my test shop to 777.
I’ve tried to empty the cache and sign out, but it does not help.
Does anyone know what is wrong?