Hello. I have a surface book 15/8 GB/DGP Nvidia/256 SSD I had problems with it shutting down and/or battery drain during sleep mode. A month ago I requested a warranty exchange and I got a new one sent to me. Just to find exactly the same problems. The SB shuts down while on sleep mode and also drains the battery on a same day sleep cycle. I do not know what to do. Is there anything I can do. I really like it and I do not want to do th ereturn process again, unless it is absolutely necessary. Every time I put I to sleep to take a break from work, it completely shuts down. and some other times it wakes up from sleep, but with the battery drained. can you help me with the issue? thank you. I have tried plenty of times installing the OS from scratch and I always get to the same point.