Hi,I bought microsoft designes bluetooth mouse recently for my laptop lenovo x250 (win 8). Note: this mouse dont have receiver itself. So i installed a new bluetooth device and the mouse started to work just fine. Day after when i started my computer, the mouse didnt response. I tried everything, even the start up as it was in the manual but the mouse didnt work. So the only solution was to re-install it and then it worked. So everytime i boot my computer, designer mouse stops working. So what am i missing here? Do i have wrong settings? Any ideas? =)