Can't erase my picture tubes

[chaitereye]

For some reason when I click on the picture tube tool the tool options box comes up displaying dozens of tubes from my folders I don't want in there (PSP7). I tried cleaning out my cache. I deleted the path in the preferences/file locations & I even deleted the tubes folder & made a new empty one. However, I still can't get them out of there. This really takes up too much time when I'm searching for a specific tube. I have two other folders on my hard drive & it seems to be showing all the tubes in those folders. What can I do?