LyX ⇒ 2 column table text/math problem

[thesourceofx]

I've been writing my science homework assignments in LyX and I've been wanting to try something new that isn't working. I'm using "descriptions" to label the various problems and then within each item I want the document to be split into 2 columns. The left column contains the textual description of the solution to the problem and the right column contains any mathematical formulas related to the solution. What I've been trying to do is make a table in LyX with 2 columns and just put the appropriate stuff in each column. Firstly, when I write into the table the columns just keep growing in width until the table starts running off the screen. Secondly, when I try to run pdflatex I get a whole bunch of errors:

Missing $ inserted
LaTeX Error: Bad math environment delimiter
Extra }, or forgotten $
Missing $ inserted
Missing } inserted

Those errors are from using the Display Formulas environment. I get many more errors when I use the Gather environment. Does anyone know why that's happening and how to fix it?

[lews therin]

I'm having a similar problem.
I'm trying to write a book type document, and I want to show four equations so that there are two of theme for each line, so I tried to put them in a 2x2 table.
It works fine only if I use inline formulas, but if I try to use a displayed formula and to label the expression within the tabel it gives me this error

Missing $ inserted
You can't use \eqno in math mode
Missing $ inserted


It gives me even more errors if I use other types of formulas...for instance, using a Eqnarray Environment it ends like this

Missing \endgroup inserted.
Missing } inserted.
Missing } inserted.
Missing \cr inserted.
Missing { inserted.
LaTeX Error: \begin{longtable} on input line 50 ended by \end{eqnarray}.
Missing $ inserted.
Display math should end with $$.
Missing } inserted.
Misplaced alignment tab character &.
Misplaced \crcr.
Misplaced \noalign.
Misplaced \crcr.
Misplaced alignment tab character &.
Misplaced \omit.




P.S. Sorry for the bad English, I'm Italian