Math mode with Lyx Aqua

[Gattuso, Jean-Pierre]

I run Lyx 1.3.4 Aqua on Mac OSX (panther) using a French keyboard. I 
have two questions, one about superscripts and the other about the 
math mode.

1- I click on the formula toolbar button and type E=mc^2. The display 
is:  E=mc22 (the caret does not seem to be recognized).

2- Also, letters in math mode are shown in italics. How does one 
avoid this? For example, I want to type g m-2 d-1, with "g", "m" and 
"d" as normal text not in italics (and, of course, "-2" and "-1" are 
superscripts).

Thanks in advance for any help.
--
Jean-Pierre Gattuso | mailto:[EMAIL PROTECTED] | 
http://www.obs-vlfr.fr/~gattuso