I recently upgraded from the previous generation to the current one, usually i will skip a generation before upgrades but i was able to use a friends employee discount so i thought why not. for most tasks the i5 smokes the 2.8ghz core2 duo that i had, but i have been getting a weird lag in firefox. mostly this is when using netflix, the video will hang for a second then race to catch up. Sometimes though even when scrolling or typing i get this lag, and the old computer never had issues with any of this. I seem to remember someone else complaining about this problem too but was unable to find the forum again, if it was on this site that i had even seen it. Just wondering if anyone else has been having this issue and any idea what may be causing it. My first suspect was lack of ram but i went to activity monitor and i usually have at least 1gb free.