You need to change the text interpreter setting to LaTex. Right click on the text box, select Properties, then change the interpreter from the default Tex to LaTex. Use math mode, e.g., $\dot{a}$, to get the results you want.
xnuke
"Do you think you used enough dynamite there, Butch?"
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.