Is it safe to email a DXDIAG report?

2kgames, the makers of Civ V, sent me this email in response to my complaint of a bug in the game. Is there any risk in doing what they ask? On the other hand, is there any possible benefit to me? (The bug is in the game itself and many other people have encountered it.)

"To further assist you with your problem we require you to send us a DXDIAG report from your computer. To do this:

- If you're using Windows XP, click Start on your computers desktop, then click the Run icon . Or if you're using windows Vista\7 Press the "R" and "Windows logo" keys on you keyboard.

- Type the word "dxdiag" (without the ") into the text box and press OK.

- In the bottom right hand side of the screen, click the "Save All Information" button.

- Save the dxdiag.txt file to your desktop.

- Attach the file to your reply to this email.

With the information contained within the DXDIAG report we will be able to investigate your problem further."