addendum
SOME thumbnail's are updating, but there doesn't seem to be any rhyme or reason to it. They're are all in the same format, and if I remove them from the library, and re-import/set thumbnail then different ones will show the correct thumbnail ?
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scratch that - there's a 'saving tag changes (1 remaining stuck at the bottom status bar), after that, THEN I start getting the un-updated thumbnails
so... that must be because I have the save info in file options turned on
but, why is it even trying to save a thumbnail into an avi ?
if I wait long enough then it will finally show the correct thumbnail, and any other changed thumbnails
but the next change i make starts the 'saving tag changes' process again and no new thumbnails are updated until , what looks like a timeout happens.
at least i'm assuming it's stuck on a timeout, because it always shows '1 remaining' even if I change 5, and then after the message clears all 5 will update ok
(or rather, they will update as fast as I had made the changes)
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further investigation shows...
an increase in the amount of threads running in your process - yup, 1 for each file
followed by a rapid decrease
yup, definately a thead problem, going to a folder i've never thumbailed show a rapid increase/decrase according to the amount of files there
i'm guessing here but it looks like
1) start a thread for each thumbnail you make (ooh lets say about 5 in rapid succession)
2) long waitfor with a timeout on each thread (long pause with no cpu usage)
3) gui doesn't get updated
4) each thread finished pretty much (one after the other + the delay between me making changes)
5) repeat ad nauseum when you make another change
hope this is usefull to you