Do you have Rick & Delphy's CAS Slider Hack?  If you do, delete the files and install the newly updated ones for the patch.  My launcher kept crashing and then I had checked my hacks for updates.  I updated that file and was able to install things again.  It's late and time for sleeping, so I haven't tried to play my game again tonight, but am hoping the damn thing works.  I am also hoping that the patch fixes the stupid restart your computer 3 times before you can play thing I have going on.  But I'm not holding my breath.