Q:
A: what you will need to do is download and install the latest driver for Vista (32 or 64, whichever you have) for the Radeon HD 3870 from here: http://ati.amd.com/support/driver.html Then you will need to apply the hotfix ATI created for the 4850 from here: https://a248.e.akamai.net/f/674/9206/0/www2.ati.com/drivers/hotfix/hotfix_vista32-64_dd_ccc_hd4800series_64906.exe Good luck!