id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 10321,Windows Media Player either hangs or crashes with Windows 8 CP,ed2010,,"Host is 32bit Win XP SP3 Guest is a clean install of x64 Windows 8 CP. Winsat and Windows Media player run fine before install Guest Addtions. After installing Guest Additions, ""winsat formal"" fails with {{{ OpenGL Error: Assertion failed: thread, file D:\tinderbox\add-4.1\src\VBox\Additions\common\crOpenGL\pack\packspu_context.c, line 195 }}} Also Windows Media Player either hangs or errors with a stopped responding error. Windows media center does not play video either. I managed to play video in the Metro ""Video"" app, so this seems to be Media Player specific. I've attached a copy of the winsat output. The dump file is 56megs and uploaded here: [https://skydrive.live.com/redir.aspx?cid=a2a277a857b771a2&resid=A2A277A857B771A2!164&parid=A2A277A857B771A2!138&authkey=!] ",defect,closed,WDDM,VirtualBox 4.1.10,obsolete,,,other,other