I have a Dell Studio XPS 1640 with an ATI Mobility Radeon 3670.
I started with Vista, migrated to Windows 7 Home 64 when it became available.
Under both systems my display was 1920 1080 and worked well wit the bluray dvd.
Recently had problems with some Geovision Camera software I was trying to use and had to migrate to Windows 7 Professional 32.
I have spent all day trying to get the ATI Radeon drivers
to work with W7P32 and the 1080 screen but the most I can get is 768 x 1366
Has anyone else seen this? Is there a fix?