My Insprion 6400 with Radeon 1400 and WUXGA Display (1680x1050) has been working fabuously under Windows 7 and 8.
Running the Insider preview of W10, the latest driver for that Card cannot be installed. Please provide an update of the ATI Driver for Windows 10.
well, using the vista driver package from dell works for the w10 preview versions (including the 10240 RTM). however, the automatic update via windows update is not possible: it seems that an official w10 compatible driver would be required...
(still have to try to use an update/fresh install using the w10 ISO. will report if this works...)