Windows Vista 64bit
Flash Player is up to date - 18.104.22.168
The file #sharedobjects keeps emptying itself causing all saved data in game and such to be wiped. I'm not sure on what time frame it auto-deletes but this happened after the latest flash player update.
Sorry, I have no more ideas; hopefully someone from the Flash Player team can come up with additional ideas.
All I can say is that Flash Player does not do that by itself, so it must be something else. Norton/Symantec of course are always suspects.
First, just for sanity sake, you aren't using private browsing are you?
If not, the next thing I'd try is to see what is writing and deleting files from your #SharedObjects folder. Grab Process Monitor and start it up. Create a new filter with:
"Path", "begins with", "C:\Users\username\AppData\Roaming\Macromedia\Flash Player\#SharedObjects", "include"
From here you might be able to see what process is deleting the file. You can also add another filter with "detail" "contains" "delete" "include".
Finally, if you haven't already you might want to consider resetting your Firefox profile.
WEll I'm new to Process Monitor, it's a big list after I filter but I do notice the columns Operation, Result, and Detail and I have a feeling I should be looking there but can I sort alphabetically by those columns?