Downloaded the latest Flash version [7.0] and installed it on two systems.
In camino the flash (Bruce) appears to view and play just fine.
In Safari on another system it plays fine also.
The Safari on this system it loads but that is it. Blank page.
Checked preferences. They're fine.
Haven't run permissions yet. That should clear up safari.
If not, then I suspect there could be a bad cookie issue.
Probably a cookie from Florida. Humidity/heat can cause some strange behaviors. <gr>