I have installed 1.9 and everything works fine until I login and go to Adminstration.
On all pages where I can enter new information I am seeing a blank page where the editor should be.
For example if I wnat to add a new Category, all I will see is a save button. Then the page shows the below error
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.3; .NET4.0C; .NET4.0E; BRI/1; Zune 4.7)
Timestamp: Thu, 6 Jan 2011 22:59:20 UTC
Message: 'Sys.Extended.UI' is null or not an object
Line: 476
Char: 5
Code: 0
URI: http://......../administration/CategoryAdd.aspx
Does anybody have any idea what is causing this
