After logging into system, display goes off. Only remedy is to turn system off.
System is Dell Optiplex GX270 - 5+ years old
1. Tried different profiles - same result.
2. Uninstalled display driver - same result after reinstall.
3. Tried safe mode with networking - same result
4. Safe mode only - display works OK.
Also, when this happens cannot access a shared folder of this system from other computer.
It seems like a hardware failure to me except for the fact that it works OK in safe mode only - that seems strange to me.