Hi, i have problem on my 2nd user (1st user is default administrator), it shows pop up window "need to reinstall the following in order to work properly: ATI Catalyst Control Centre" but windows can't find the online solution as a result my Vaio Media Galery doesn't work and also it slows down my Vaio gate. However this problem doesn't show on default administrator user. My comp is Sony Vaio VPCZ214GX, processor Intrl Core i7-2620m @2.7ghz, windows 8 64bit, intel HD Graphics 3000