Came to 10581 straight from 8.1 and did hard reset without restore. Checked the store for updates and Glance Screen was listed as needing update. But for days now, it's not updating, giving me error code 0x803F8006. I've installed sysapp pusher but when the app takes me to the store link, store says glance not available. Same thing happens with gesture beta and glance background. Although glance is working for me on my 920 with latest build. But there's no background image and it doesn't show detailed status for my messages which I've set to do so. I just shows number of messages unread.