I updated from 3.5.0 to 188.8.131.52 with no upgrade install problems noted.
Edited a presentation - no problems.
Tried to run the slide show and got lots of problems - blank screen, distorted text, no images.
Tried uninstall and cleaned out leftover program files, registry, etc. Reinstalled clean and had the same problems.
Uninstalled and cleaned again and reinstalled 3.5.0 - now it works.
Looks like a broke in 3.5.1 (Needs a little better regression testing ???)
I saw nothing in the release notes that seems to be in this area.
Any ideas would be appreciated.