Bootloader install/uninstall Problems

[arockboxuser]

Hi. I have an ipod 30gig 5.5gen. A while ago, I installed rockbox, then I uninstalled it a little later. Between now and then I have reinstalled the Apple firmware several times. Yesterday, I tried to do the full installation, but the boot loader wouldn't install. Today, I tried to install the bootloader seperatley from the main rockbox. The boot loader still wouldn't work. I just realized that because I had already installed Rockbox once, I didn't need to reinstall the bootloader, so I installed rockbox without it. Then I tried to boot rockbox and it wouldn't work. I tried to uninstall the bootloader, but then it kept telling me that my ipod couldn't be found. Whenever I tried to do something else, the iPod was found easily. Please Help me 

Thanks in advance!

P.S. I used the Rockbox Utility in Windows XP

[MarcGuay]

Please explain exactly what you are doing (using the names of the tabs and buttons in Rockbox Utility), and write down the error messages you are receiving, if any.

[bluebrother]

Posting the output of the About / System Info box could also help revealing possible problems.