In Powerpoint 2010, a coworker accessed a file from a shared (mapped) drive from our server. This morning it was perfect, everything showed exactly how it should have. Sometime during the day it changed. Whenever he accesses the file now, the formatting is all different. The fonts are not showing up as they are supposed to on the slides. However, when other people access the same file from the shared drive, it is still working perfectly. The slide master is still set to the correct settings. This issue is only occurring on one person's computer, and it had been working correctly earlier in the day.
Has anyone ever heard of something like this happening, and are there any known fixes for the problem?