I know it's an old build, but I haven't downloaded the new one yet
When you move the cursor off to the side of the screen in fullscreen mode, it'll stretch towards the edge then vanish. I'm not sure if it's some program I'm running in the background or what, but I never noticed it until a couple days ago. It's probably something I've done, but I wanted to post this just in case. It makes selecting some combos irritating, considering the cursor vanishes
[Edit] This may just be me. I tried to take some screenshots of it, but in the screenshots the cursor appeared normal. I do have the -scale 2 in my command line, and was running under windowed mode until recently. I'll check on this more tomorrow