<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Well, I didnt really want to do a reinstall but with the usb and dvd problem, I couldnt see any other way. I tried everything else, and it just didnt work. This problem seems to be an ongoing thing, does anybody know why it hasnt been fixed? On 07/02/11 18:54, gazz wrote: <blockquote cite="mid:1297104843.24975.10.camel@fbterm" type="cite"> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <meta name="GENERATOR" content="GtkHTML/3.28.3"> On Mon, 2011-02-07 at 18:28 +0000, John MM wrote: <blockquote type="CITE"> Hi, I have an Acer Aspire One, and I am running Ubuntu 10.10. Since upgrading to this version, I am getting the same problem, I cant use USB sticks and I cant plug in my external dvd rewriter. It gives an error 'unable to mount usb stick, not authorised'. It seems to be a Ubuntu problem, and so far I havent been able to find a fix for it. I want to do a fresh install, but I cant because it wont accept both. </blockquote> This bug seems to have been around for a while, I vaguely remember encountering it a few versions ago - there's a discussion of it here: <a moz-do-not-send="true" href="https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/518533">https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/518533</a> - I could still mount them manually on the commandline, I think it's Nautilus causing the problem. Some people suggest the only way to fix it is a clean re-install. It sounds like your system might need reinstalling anyway. If you're reinstalling from USB, you only need the BIOS to recognise the stick, not Ubuntu, so this shouldn't be a problem if you can get someone to create an installation stick for you or burn a CD for your external USB CD drive? I'd probably put 10.04 on it as 10.10 doesn't have long to run. Paula </blockquote> </body> </html>