If you don't have an NVIDIA graphics card, then remove the nvidia packages: * glx-alternative-nvidia * nvidia-driver * libgl1-nvidia-glx and instead, install libgl1-mesa-glx. This should allow your INTEL card to do the 3D acceleration.
Darac - Thanks. I checked, no Nvidia device. Did as above. Computer is now in infinite loop. Ask for a reboot, reboots and returns to the terminal login prompt. TIA Ethan