We purchased 6 SP3s and have various employees using them as a test to determine if we add this product as an option to our regular Lenovo laptops as part of our asset refresh list. They are all working great except for one very annoying issue. Occassionally when the device has gone into sleep mode (connected standby) it will not wake up correctly and displays a black screen with just the mouse cursor visible. The mouse cursor is movable but no keyboard commands appear to work including ctrl+alt+delete. The windows home button does vibrate when touched but does not cause any change. Interestingly, you can RDP to the device as a different user but you get the same black screen with mouse cursor and no key commands seem to function including ctrl+alt+end etc. For some of the users it seems to be fine for a week and then starts again after what they claim were MS updates but cannot verify this. Again, this if for 5 of our 6 users. One is not experiencing the issue but his SP3 was created from the same image and has the same applications. All have been updated to latest updates.