When using photoshop on a document it just shows lines like _____ so. changing font does not work. I bought my creative suit through a university. Can I uninstall and reinstall with out having to show proof of being a student again? If I don't have to do that I would rather not. But not sure how to fix this issue.
I doubt you need to uninstall. You might have the text colour the same as the colour behind it. Do you see a vertical cursor as you type? If you OK the type and double click the Type layer, do you see a block, or just the line?