Possible Duplicate:
change directory command doesn’t work in windows command prompt
I have a ramdisk on t: drive in Windows 7 64bit. It has a folder called temp. I can't do a CD t:\temp in a DOS window. There's no error message. the command returns with a prompt at the same c: folder where I issued the command. If I do t: it switches to t drive. The CD however doesn't switch to that drive.