It does some similar, but there are a few notable differences:
1. When my screen locks, I get niether the nvidia logo nor a mouse cursor. I just go from the boot output to a black screen.
2. When I use the soft-reboot method, everything works fine. It doesn't lock up after any period of time, the system is working just as I would hope it would.
I went ahead and tried re-installing the drivers with the "-n" option. It seems to have made no difference at all.