Dear all, I have observed that the following math: --- $H_{0}\!$:$\,\alpha _{i}=0,$ --- creates a strange underline in HTML but not in LaTeX. Is that a bug? Best, Peter Programmer Peter Morling, University of Southern Denmark Department of Statistics, Sdr. Boulevard 23A, DK-5000 Odense C Phone (+45) 6550 3399