Katt's tail twitches over exec's tall tales.

Presents news from the computer industry for May 3, 1999. The disclosure by `The Wall Street Journal' that Jeff Papows, head of Lotus Development Corp., had exaggerated events in several stories; The war of words between Microsoft Corp. and Novell Inc. over Dell Computer Corp.'s choice for an internal computer operating system; Problems installing the upgrade of System Works from Symantec; Shortages of color liquid crystal displays for pocket computers; Other news. INSET: Microsoft Intellimouse spawns new Katt franchise.