loss of window controls

[utu]

You might try ftp://ftp.knoppix.nl/pub/os/Linux/distr/knoppix/

If that's not satisfactory, then choose from
http://www.knopper.net/knoppix-mirrors/index-en.html

I have used my LiveCD to successfully reformat a broken USB with gparted,
on the Preferences menu.

Make sure your USB is large enough to hold the DVD version.

And, good luck.

[Werner P. Schulz]

A server in Germany is

http://ftp.uni-erlangen.de/mirrors/knoppix-dvd/

You cannot download DVD 6.5; it is special edition sponsored by a Linux magazine.