更新用户的个人资料图片

i am making an application where I am using ImageLoading Framework for Dowloading the Images from the Server Put the Urls in the Cache... Now I want the User's Profile Picture updating but Even after updation of the profile pic on the sever Its not displaying in the Application. App is showing the old Profile Pic of the User. Why this problem is arising and how can i troubleshoot ?? Please Help asap. Also Post the Links if that is helpful for me..i am making an application where I am using Ima