Just for a bit of housekeeping I thought I'd select to clear the disk cache on the:
Preferences / Network tab.
Which is currently set to 500mb.
SL said it would do so on next log-in.
It did it, but now I have a weird thing happening.
When I see some things "in world" for the very 1st time, just before they REZ, they show up as a default picture.
100's and 100's of them all over the place.
It's like some default (not rezzed yet) texture had been replaced by a screenshot of inside a building.
Here is a good example:

and here:

and a good close up here:

They only show for a second or so and I had to be quick to capture these screen grabs before the correct textures appeared.
Is this the kind of thing that can happen after clearing your HDD cache?
Should I clear the cache again and see if it solves it, or will it just go away as the cache fills?
Odd, as I never saw this ever before.