I accidentally double "reinstalled" two versions of brushes in a single group using arpack files.

When I did so I ended up with two sets of brushes in the group, one automatically labeled "_2"

To have a fresh start I looked for a way to delete the custom brush group but did not find any, so I went to the custom brush directory and deleted the group folder.

When I tried to re-install the group (the single version I wanted) from the proper ARpack, AR said that it was previously installed and asked if I wanted to repair.

I click on OK to this, but nothing is installed.

Now I simply cannot install my brushes.