pat2cwav worked one time

For pat2cwav I now only get NaN NaN for any new wavelets I create when using 'polynomial' ('orthconst' does at least produce [0 1]). Does anyone have suggestions on a file I may need to delete in order to create new wavelets, i.e. a temp file that has stored any previous wavelets that prevents new ones from being created? Thank you. Using 2014a