Crop from the previous image, and a clear demonstration of the effect.
This was taken with the latest firmware update from Fuji, which was supposed to reduce the effect.
I leave it up to you to decide whether this is so major a problem that you would not consider buying the X10,
or that you would send it back, if you've already bought one.
For me, it isn't a big deal. I just try to avoid situations where it might occur, so I shall keep
the camera and derive great pleasure from using it. The white orbs will probably create far fewer
duds than will my limited skills as a photographer! And this is a "standby" or "backup" camera,
for occasions when I don't want to take the big Nik with me, anyway. But a jolly good one, nevertheless.