Have a Dell XPS 410 duel core 4 gig ram. Bought it who a friend a few months ago. Was running on Visa 32 bit. He gave me the Win 7 upgrade disk with the pc. The upgrade to Win 7 64 bit was a piece of cake and no problems at all. On auto upgrade the system loaded IE 8. Have both IE8 64 and 32 bit installed. Over all the system is great except on some web sites Parade games for example will run fine for awhile then just disconnect. No internet service, but will then connect back to my home page. I share the internet service with my wife on our home network thru a Linksys dsl switch and actiontec dsl modem. Her pc is a HP duel core, 6 gig RAM, same software as mine but no problems with disconnects. Any thoughts out there? Should I bump the RAM on mine to 6 or 8 gig? My system was running XP when new. I understand XP was limited to 4 gig, but I was told by Dell that now that I am on Win 7 I can go beyond 4 gig.