5 ways to get rid of the black comb-shaped mousepointer
When ingame
1) Minimize the Dota2 Window by pressing the *Start button.
2) Go back to Dota 2
3) Left* Click the Yellow shop button three-five times
-If it doesn't work Repeat from step 1.
After the game. (Updating your Graphic Card)
1) Close Dota 2
2) Click Steam Main Window (Where all of the News,Community etc. are in)
3) Upper Left Corner of the Window click *Steam*
4) Click on Update AMD Video Drivers.
5) Wait for the Download to Finish.
6) Install and Reboot the PC.
After the game *or* while the game is paused.
1) Right click desktop
2) Screen res
3) Only show display on second monitor
4) click apply and then revert when box pops up (takes roughly 10 seconds)
When in-game
1) Hit the start button that will make you go to the desktop.
2) Go back to Dota 2 and swipe your mouse pointer back and forth the screen really fast.
*More often the not the mouse pointer will become the small pointer you use in the desktop, then after sometime it will go back to the original dota 2 gaming pointer.
3) If it doesn't work repeat from Step 1.
Last Way to get rid of it is simply Reboot the PC, but it might be a hassle for other people with slow startup so i included the other three other alternative ways on fixing it.