Why do special characters not display correctly in Quartus II Text Editor? - Why do special characters not display correctly in Quartus II Text Editor? Description The Quartus II software version 11.1 and later uses UTF-8 encoding. Therefore, special characters created in previous versions of the Quartus II Text Editor may not display correctly. Resolution To work around this problem, do one of the following actions: Re-enter the special character in the Quartus II Text Editor. Open the file in an external text editor, for example Notepad, and save the file. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 11.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']