I have a SP3. Whenever I plug into a external monitor (full HD) using the display port to HDMI converter, the mouse pointers immediately shrinks till its really tiny. Its still viewable on the large 23" monitor but it becomes totally impossibly small on the SP3 screen. I went to the mouse settings in control panel and try changing it but the mouse pointer still remains the same tiny size no matter which type of pointer I pick. Any help??