I currently have Lightroom 3.6, which I just recently upgraded to on yesterday Saturday 10/10/14. Prior to the upgrade and since upgrading, when I try to apply Lightroom Presets to Images under the Develop area Lightroom goes into 'Not Responding'. I have tried removing my preferences File and letting Lightroom create a new one. I have copied a previous backup of a Lightroom Catalog to the 'C:\Users\[UserName]\Pictures\Lightroom' all of which has been not resolved my issue. Any help I could get would be greatly appreciated. Thanks!