Font style not available on select machines (Captivate 5)

Cap community,

For most of our projects, I selected Lucida Sans as the default font for most caption types. Internally we would hand a single project file off between 2-3 different people and didn't have any issue until recently my boss does not have the Lucida Sans Regular font style while at least three others of us do.

Below and left is a screenshot from my machine that shows the Regular font style. Below and right is a screenshot from my boss showing the missing Regular font style.

The obvious thing to check is that she does in fact have the same font family and not just the Italic, Demibold Italic, and Demibold families. However, we both have the same font on our Windows > Fonts folder. Here is a screenshot of that font from the Windows font viewer. The font name is Lucida Sans Regular (TrueType) and the filename is LSANS.TTF (oddly enough, the font viewer describes it as OpenType even though the name in Windows Explorer reads TrueType... but this is the same for both our machines so it doesn't appear to be a different variable).

We even carefully uninstalled her Lucida Sans font family and copy/pasted my font file to her machine to ensure we had the same one, and still no joy. Has anyone run across this issue? Seems like it could be either a font issue or Captivate, but leaning toward Captivate since we feel relatively sure that we have the same font.

BTW, as a result of this difference when she opens the .cpx project file I'm working on it replaces all the Regular font styles with her Demibold or Demibold Italic, which throws everything off if she wants to publish to swf or Word doc.

Best,

Danny