You're specifiying icons of 30x30 to be displayed (SD definition). In any case, if you disable the show icons option, then it should not matter.
Please open RR.INI (DIRECTLY) and verify you have showicons=false -- and that you only have 1 showicons= line in the whole file. Please note that not having a showicons= line is the same as having showicons=true (which is the default).
Also note that showicons is a global option -- having it OFF will disable icons on ALL lists -- not just the folder list.