have the same problem with a virtual machine under VirtualBox.

I'm running:
Linux 2.6.32-220.23.1.el6.x86_64 #1 SMP Mon Jun 18 09:58:09 CDT 2012 x86_64 x86_64 x86_64 GNU/Linux

Log files Xorg.0.log says:

[ 38.144] (II) LoadModule: "vboxvideo" [ 38.145] (II) Loading /usr/lib64/xorg/modules/drivers/vboxvideo_drv.so [ 38.145] (II) Module vboxvideo: vendor="Oracle Corporation" [ 38.145] compiled for 1.5.99.901, module version = 1.0.1 [ 38.145] Module class: X.Org Video Driver [ 38.145] ABI class: X.Org Video Driver, version 9.0 [ 38.145] (EE) module ABI major version (9) doesn't match the server's version (10) [ 38.145] (II) UnloadModule: "vboxvideo" [ 38.145] (II) Unloading vboxvideo [ 38.145] (EE) Failed to load module "vboxvideo" (module requirement mismatch, 0) [ 38.145] (EE) No drivers available. [ 38.145] Fatal server error: [ 38.145] no screens found [ 38.145] Please consult the Scientific Linux support at https://www.scientificlinux.org/maillists

Everything else is working fine but I can't use the console.

Joe