Hi, This is to relate my problems with the OS Selector in DD v10 b2160. To set the stage: Multiboot system with 3 versions of XP and 2 Linux installs Physical drive 1, XP Pro OEM,XP Pro nlite " " 2. XP Home,Ubuntu,Puppy Linux " " 3. USB Ext 80GB storage,no boot As you notice,I put physical drive like DD does. In my opinion that's where some of the problems come from. Windows convention is drive 0. , 1. and 2. I hadn't tried OS Selector before and today was the day Well what I experienced was enough to put a lot of people in a tizzy. OS Selector recognized the XP installs,but not the Linux ones. Activated OS Selector and selected XP Pro OEM for next bootup. That was fine,so I tried the nlite. For some reason OSS didn't like it and I got the hall.dll error. No way to get out of it. Escape for Menu didn't work.It just rebooted and got the same error. F8 no longer worked either.So I couldn't even get into Safe Mode. I used ERD to get into the C:\ partition and edited the boot.ini to boot into XP Pro OEM again. That went OK,but considering the trouble I experienced, I decided to de-activate OSS.That's when everything went dowhill. For one,in the panel to select which OS to boot into after de-activation, no longer showed XP Pro OEM. So fine,I selected XP Home. Surprise On bootup nothing worked anymore. Instead I got the message that there was a hardware- and a configuration conflict. Back to using ERD again. To make a long story somewhat shorter and to summarize: OSS changed (screwed up in my view) 1.BIOS settings.Changed boot order of drives. Disabled booting from phys drive 2. 2.Changed boot.ini to Acronis convention NOT Windows convention USB(used to be disk 2) was changed to disk 0. Phys. drive 1,which used to be disk 0, was changed to disk 1. and phys. drive 2 (used to be disk 1,was changed to disk 2. Also a ; semi colon was added in front of each entry in the boot .ini thereby preventing the use of F8,since nothing would show on the startup screen to select an OS to boot from or even to get into Safe Mode. In order to correct this,I had to completely reset the BIOS. Disconnect the USB drive,to remove it from being disk 0. Completely re-edit the boot.ini on C:\ to Windows convention. It took me well over an hour to correct this with checking and booting etc, which is nothing in the scheme of things. Some people may well have been stuck for days,because ,before I fixed it, I ended up with a totally non-booting system on all drives and partitions. Suffice it to say that I will no longer use OS Selector. For the life of me,I can't understand why the Windows config can't be used for enumerating drives.You can see from the above how many problems it creates. Just for interest,I'm back to using XP's Startup screen and I also use Restart from http://www.gabrieleponti.com/software/ which not only sees Linux installs,but also allows booting from a Windows OS desktop into any of the other OSs. Much simpler and easier and no confusion I'm only posting this in case other people have this trouble and are looking for the cause. Advice or comments are always welcome Pete.