After upgrading to 6.6 free, import utility no longer works

Is there a known bug with the Import utility? I’d been using v5.8 for a year or so, without any problems, to import delimited text files into SQL Server. After upgrading to 6.6, the utility is no longer working. It doesn’t break the text string on the specified column delimiter. I’ve tried CSV and vertical-bar delimiter, but the line of text is always treated a single long field.