Cannot change to 'C:\' (root) on Windows

[Martin H. <mar...@gm...>]

Dear all,

I just compiled the current CVS HEAD to update my Gnuplot installation.
Unfortunately I am unable to change to any root folder (on Windows). If
I type in "cd 'C:\'" I get the following error:
Can't change to this directory
The same applies to D:\ etc. (any root folder). Is that only me or is it
a bug?

With regards,

Martin.