A computer worm is set to damage computer systems, starting midnight local time on Feb. 3. There has been a lot of confusion surrounding this worm, especially because media organizations and antivirus vendors haven't decided on a common name. CNET calls it Kama Sutra. Its other aliases include CME-24 (US-CERT), MyWife (McAfee), Tearec (Panda), Nyxem (Sophos), Blackmal (Symantec, Computer Associates, Vet), and Grew (Trend Micro). Why should I/you be worried? Kama Sutra contains a dangerous payload. On the third day of the month, it will overwrite certain files with an error message: "DATA Error [47 0F 94 93 F4 K5]." It is programmed to affect all files with the extensions .doc, .xls, .mde, .mdb, .ppt, .pps, .rar, .pdf, .psd, .dmp and .zip. These files--which include the default file formats for Microsoft Office and Adobe Acrobat applications--cannot be restored once they are damaged. Has it spread worldwide? Security vendor Lurhq has metrics on the spread of Kama Sutra in