Speakup with debian sid with all updates applied as of March 28, 2009 on this system is allowing files to open and for a short time displaying their contents then clearing the screen so it's like the file you're reading appears blank. Hopefully nobody else is experiencing this behavior. I first ran into this while debugging an iching hexagram generator I was writing with vbnc. I ended up deleting the source file since I have a copy of an earlier source and executable this did not pose any problems. I was doing a search and destroy mission on characters outside the printable character set in ascii and right after I searched for \f and told ex to remove those this behavior started. A system reboot did nothing to clear it either.