I have a toshiba satellite 2455-s305. I baught a game that requires a graphics card with at least 128MB VRam. My laptop only has 32MB. I talked to a guy at best buy and he said that he could upgrade the memory to 128 but i really don't have ther extra money at the moment to do so. My Graphics card is a GeForce 420 Go. My wife has a HP Pavilion ze5600 laptop and her graphics card runs 64 MB. I would appreciate anyhelp you could give with updating them to play our games if u could. Thank You.