Evening all, Yep, as the title says, I upped the ram on my iMac from 2GB to 4GB. I bought the 2x2 kit from Crucial, who I've learnt to trust. Installation went fine, 4GB is showing up - but I'm really not noticing any difference in the iMac's performance. Everything's working fine, it's not that I'm having any problems, but I'm just not seeing any marked improvement in the speed of apps opening/operating etc when I've lots of stuff running. Should I be noticing a big difference? Anyone out there who has done the same upgrade? Thanks.