I Got this unity error “Unity Web Player requires DX9 graphics card.Make sure you have graphics card drivers installed” Please help me 
2 Answers
2If you read the error, and maybe actually looked up what it meant, it’s telling you to update your graphics driver. Make sure your drivers are all up to date, and see what happens.
This isn't what that error means. I'm having the same problem and all my graphic cards are up to date. I have played games that aren't working now.
– greatwhiteshark17283Your old Intel GFX chip is no longer supported. Sorry.
4.3 changes state anything pre-DX9 is now unsupported, however, as your 2011 DX11 3150 GMA is missing one or two GL extensions, it loses total support.
Some of this is intentional, some of it we think is a bug.
This happened to me, too. I have played hundreds of games with the Unity Web player and this has never happened. I have a Dx9 graphic card on my computer.
– greatwhiteshark17283