Ok so i have a 24in iMac from 2009, has 4gb of ram and 2.66 core 2 duo. I have never had this problem but up until 2 months ago safari has really been lagging. Heres why perhaps. I have a trading platform that runs as an application installed "supposedly" uses 2gb of ram but i have yet to see activity monitor when everything gets slow. Then I have a java based platform running at the same time along with 5 safari tab windows open. It will work fine for a while then get real laggy, typing is so slow, scrolling lags, i have to close everything out and delete the plist from the library and start over again, pretty much rinse and repeat. My question is if I upgrade to 8gb of ram will i still see this problem? I assuming its the ram because I don't have this issue when I am just browsing the web with everything closed out. At first I thought the lion upgrade would change it all but not i think it has to be the ram. Any inputs? Thanks