Not sure why or how but the update from Workstation Player 15.5.2 to 15.5.6 yesterday broke my Windows 7 host in weird ways.
* First noticed Firefox was not showing videos on websites
* Found Youtube was making Firefox hang
* Noticed system had no audio at all
* Winamp seemed to hang when opening the audio device
* Windows Mixer hung when changing settings
* Virtual machines had no video at all (nor audio)
* Ran System Restore to before VMWare update, issues went away
System is Windows 7 Pro 64-bit, Dell Vostro 3350 (laptop)
Gonna stay on 15.5.2 for a while.