Hi, I hope someone could help me. I updated my OS to 10.5 from 10.4 on my iMac (late 2007 model). Since then I've had problems with Flash plugin with Safari and Firefox as well. Simply put, with Safari it doesn't work at all and with Firefox only occasionally. I haven't been able to see a pattern on how it works/fails. Sometimes rebooting or reinstalling Flash seems to help. Not always. The funny thing is, on the other user's side the plugin works just fine. (Both users have admin rights so that shouldn't be a problem). I really don't know where to start with this annoying problem. How would I go about completely removing the Flash components from my system and doing a clean reinstall?