[mythtv-users] Gnome 3 caution for FC15 still valid?

[networks1 at cox.net]

I am upgrading my MythTV setup and had to start from scratch with FC15. The wiki page (http://www.mythtv.org/wiki/Installing_MythTV_on_Fedora) has a worrisome discussion under "Notes for Gnome 3 on FC15" about how enabling Nvidia might cause problems with Gnome.  First, are these notes still valid now that the release is more mature?  

Second, It talks about forcing fallback mode and gives a link to fedoraproject.org that talks about how to do this.  Again this looks mighty complicated.  There is now a switch in system settings to "force fallback mode."  Should I set this just in case, or is that a bad idea?  

Once I install the new drivers I figure if I don't do the right thing I will have no GUI, and this problem with #$^%!@ Nvidia is one of the things that forced me into this whole upgrade to begin with.  So any advice would be appreciated.

Thx,

Steve