How foolish would it be to installed the X.org packages from FC3/Test2 on my FC2 system? (My interest in the current version of X.org stems from the fact that the FC2 packages (v6.7.x) do not support 3D on my video controller. Support for 3D on this hardware is one of the new features of the FC3/T2 (v6.8.x) packages. Any thoughts? Thanks.