Hello linuxt,
Yes I have used RayDream 3D 4.xx [there was a give-away version on a magazine cd some years back, I didn't keep that alas]
If you are having trouble with an existing install of RayDream v4.xx,
then the link below may help. Its only an updater to v4.5 but it was intended to fix the many little bugs in v.4.0x and up.
Downloads | RayDream :: Keep it alive
That appears to be a RayDream users site so you may find posting there as well might get you a little closer to it.
Good luck