For some reason, whenever I use b or m as column markers when writing a table in the LaTeX compiler "Gummi", the code refuses to compile. c, l, r, and p all work fine but whenever I replace a "p" with a "b" or "m", it won't compile.
Even when using this code I copied and pasted directly from a book I found online, it still will not compile:
Code:
\documentclass{article}
\begin{document}
\begin{tabular}{@{}lp{1.2cm}m{1.2cm}b{1.2cm}@{}}
\hline
baseline & aligned at the top & aligned at the middle
& aligned at the bottom\\
\hline
\end{tabular}
\end{document}
Any help would be greatly appriciated. I'm using Gummi 0.6.1