how did you install zorin? is it the sole OS (operating system) on your computer now?
is the system working otherwise, or does this occur only inside the web browser?
which web browser are you using?
please supply us with one or several screenshot(s) of the problem(s).
enter these commands: "lspci", "lsmod", into a terminal.
copy-paste their output here (and use code tags: go advanced -> #).