rendering html in a grid cell

I was hoping that if a cell of my ordinary dhtmlx grid contained something like
Fred is bigger than George

the user would see “Fred is bigger than George

But that doesn’t seem to be happening - everything is in the same font, but the tags are stripped out. This happens even when cells contents is submitted as CDATA.

I presume I am doing something wrong. Could you suggest what that might be?

What I can get to work is

Fred is bigger than George

I can expect a user to use to make things bold, but it is a bit much to ask them use

Any suggestions?

Sorry for wasting anyone’s time.
The reason for the missing boldness turned out to be .css earlier in the code overwriting the standard tags.
Took a day to discover this, and help by someone more experienced, so am providing the solution here. It might help.