In device manager a yellow error is showing against "other devices - video controller".
I have tried windows update but it cannot find one.
On the Dell site I have downloaded their system checker but it says it is unavailable for my model.
I presume it is because I have upgraded from XP to win 7.
On the dell support site it shows 3 possible downloads for "video" for my model
nVidia 256MB PCI Express x16 GeForce 6800, v.71.24 (WP), A02
Intel 915G Graphics Controller, v.18.104.22.16820, A05
Intel 82915G/GV/910GL Express Chipset Family, v.22.214.171.12443, A09
are these what I want?