Why do some characters look strange in displays (for example, Phi is not how it looks in my Latex documents)?
TexPoint displays use by default \documentstyle{slides}. This is a standard Latex style that switches the fonts to make them more appropriate for large magnification. It also switches to sans-serif fonts, meaning that some characters are going to have fewer embellishments (e.g., \Phi). The reason for this default is that if you want to use bitmap formats then the slides fonts can be magnified more without showing pixelation. To get the familiar font, switch to another documentclass (e.g., article). To make this change the default for the entire presentation go to TexPoint/Configure/Active Presentation/Default Latex Source. You can do this I also suggest that you use the EMF figure format to avoid pixelation. The latter might not work for certain characters (see below in this document).
