Because that's the maximum the ENTIRE 32 bit operating system can manage. The theoretical 2GB limitation is PER APPLICATION. George. ________________________________ From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On Behalf Of Mike C Sent: 26 April 2007 11:20 To: ddots-l@xxxxxxxxxxxxx Subject: [ddots-l] Re: VISTA - Don't fall into my trap. okay well I don't get something here, why are systems now a days coming with 4gb of Ram?