For those that are having issues, I have just finished going through the following process and can't believe how much better my games are now.
I don't think we are allowed to post outside links but going to risk it here and hope it is allow to stay to help so many that are having huge issues and don't know where to find information that they need.
Since the last Firefox upgrade to 3.6.4, I have found the latest version of flash is playing havoc with lots of lagging with anything using flash.
This Adobe Tool will help to clear anything that flash is storing on your computer so that it is nice and clean. I deleted all website using this tool so that when I visit my favourite pages, the page loads up as if I have never visited before. It does not delete your applications so don't worry about that.
Worth a try if you are having problems or just want to freshen/speed up applications that you enjoy.
http://www.macromedia.com/support/do...manager07.html
I did see some improvement but decided to uninstall Flash and install a fresh one. Wow...the difference is what I was looking for. No lag at all now.
I used an uninstaller that can be found at this link....easy to do.
http://kb2.adobe.com/cps/141/tn_14157.html
I then reinstalled from this link...once more easy to do.
http://get.adobe.com/flashplayer/
PS... un-tick Free McAfeeŽ Security Scan Plus (optional) if you don't want that to install.
Installing Flash updates can cause issues with previous versions, which is the case this time round for me and the reason that I had to uninstall the old version.
Hope this is of some help.
I should add that I am using Windows 7 plus Firefox browser. My machine is a 64 bit