I'm using windows 7 ulitmate 32 bit sp1, with an hd 3650. I recently used a dvi-hdmi cable (after upgrading from a vga cable) on my 21.5" monitor however there is about a 1" border around the screen. I have seen other solutions but they don't work for me as it's an older version of ccc. Also, my ccc keeps on crashing. The options for scaling/auto adjust won't work on the monitor.
I usually have the same problem when connecting HDMI to my monitor. The solution is varied & depends on the individual model. For my TV ( i know you have monitor so this may not apply ), I use the "Zoom" function although on exactly the same TV model & also connecting via HDMI, the way to fill up the screen is different setting.
Any chance you can get another DVI to VGA adapter & also use VGA cable for the 2nd monitor?
then i won't be able to watch 720/1080p videos. That's the reason i bought it. From my experience, i can only view these via the dvi-hdmi cable and not with the vga cable. I'm gonna try reinstalling the CCC but with the AGP hotfix (i forgot to mention it was AGP not PCI/e)