Updated 8.1 on same day it was released, had problem and did a Hard reset (soft reset didnt work), using a Class 10 32GB Ultra from SanDisk, post updating to WP 8.1, it said i had errors and had to scan to fix it, did it and next few days were very good, installed all the apps on SD Card but most of the apps including Bing news, Weather, Sports and etc... from bing, Skype, WhatsApp, Viber didnt load properly, it would open and crash, Did a hard reset again thinking that i have done something wrong in the initial configuration, post reset installed all apps again and didnt work, so moved all these to Phone memory and all these apps started work, two days back another weird thing happened, post unlocking the phone and going into the full app list, i was the whole page blank, literally no apps listed, i have the shortcuts and using that i was able to access the application but in the application list its was total blank, something got screwed when an update came in via store but dont know which one screwed my phone. Today morning reset my phone again, installed all apps from the history, till now it shows the list but dont know what would happen.... :angry: