Can't change directory to another drive in DOS Command Prompt

I'm not sure when Microsoft decided to change this syntax, but I am quite certain back in the old days of DOS I was able to type this "cd D:\games\mmx" and it'd work!

Sometime last year I noticed that I could no longer do this on the XP command prompt window. Its been nerfed. Why? I do not know.

At first I thought it was because I was using it via a remote desktop session and thought nothing of it (apart from being annoying).

Just today, I realised it also affected my local sessions also. So off I went to discover a way to fix it.

Typing in "cd /?", I found this.

CD [/D] [drive:][path]
Type CD drive: to display the current directory in the specified drive.

Use the /D switch to change current drive in addition to changing current directory for a drive.

I tried it and it worked.
What the hell?

C:\Documents and Settings\twig>cd d:
D:\

C:\Documents and Settings\twig>cd /d d:

D:\>

So I guess now we have to use the new syntax to change drives using "cd".
How annoying.