Pardon my patronizing attitude, but wouldn't it be a good idea if the FAQ were posted automatically to this list every week or two? A number of repetitive questions (namely some of my own!) would be avoided, no? Where is the FAQ these days, by the way? -- Paulo Magalhaes * Dept. Neurology, Columbia University, New York, USA voice: (+1 212) 305 1665 ** fax: ... 305 3986 ** pm119@columbia.edu