Very odd that you needed to uninstall, reboot and install. With me it just upgraded from 3.01 to 3.11 on all boxes without even blinking. GUI is slightly different (mostly black vs grey on buttons), but all in all working fine now on 64-bit OS with high-res screen. And the added Export/Save log does help to find historical saves.
Still open for me:
* multi-channel playback
* event-driven playback (i.e. quickly locate motion detected and play from there on like V2 had)
* shorter options on skip-steps (1 min minimum is too large, or allow speeded-reverse play like V2 had)