Aladdin Systems Inc. of Watsonville, Calif., the makers of the popular Stuffit file compression and extraction utility and other handy software titles, will change its name to Allume Systems. Aladdin Systems says it was forced to change the name of the company after a trademark dispute with Aladdin Knowledge Systems of Arlington Heights, Ill., a maker of digital security products. Aladdin Systems' has a new Web site at www.allume.com where anyone trying to access the old site, www.aladdinsys.com, will be re-directed.