You may receive the following error message on first run of a fresh install of Word 2010: "There is insufficient memory or disk space. Word cannot display the requested font."
This message is referenced in Microsoft KB article 2161142. Although that article only references a Terminal Server environment, we have also seen this occur on Windows 7 clients in certain environments where group policy is used to enforce certain user restrictions and folder redirection policies. The good news is that restarting the computer has indeed resolved the issue whenever we've come across it.