I am also having an issue uninstalling.
I installed WordPress and everything was working fine, but then I decided I wanted it in the main domain instead of a sub domain (probably stupid in retrospect), so I tried moving all the files. This has stuffed something up because all the files assume everything is in the sub domain. This is no huge deal as I havn’t lost anything, and I figure deleting everything then installing again will work, but then when I try to access install.php after the second install it’s telling me that it’s already installed, but it still won’t let me logon. ??
Thanks in advance for any help.