Nu är det löst! TastyApps support hade lösningen! tydligen var det ett "känt" fel så dom hade en enkel lösning!
1) Quit Safari and Videobox.
2) In the Finder, hit Command-Shift-G and type-in ~/Library/Application Support/SIMBL/Plugins
3) In the folder that opens-up, there should be a TastyAppsAVPlugin.bundle file; please move it to the trash.
(If you had an older version of Videobox installed check for a "Videobox.bundle" and remove that)