   The XF551 DRIVE ENHANCER:   ---------------------------  This little utility is designed  to speed up the performance of  the Atari XF551 disk drive when  used with the XL/XE computer.  It's claimed that this utility  increases the XF551's SAVE/LOAD  time by over 12%, but you'll have  to be the judge.  It certainly  seems to make it hum right along.  - J. Jones