Hi,
I'd like to suggest something small. The items that appear in 'startup' are loaded when the program starts, and not when one enters the 'startup' option. it would be useful to add a 'refresh' button there, because items that were uninstalled (not using ccleaner) while ccleaner runs will still show up as installed. even if u go out of the 'startup' and go back in, it will still be there, unless u restart the program.
other than that, great program!