Ordering 1645 today, 1920x1080 or 1600x900?
So your laptop was released with at least with two versions - maybe you got the cheaper 1600x900?
Maybe your screen is actually running 1080i @ 30hz - coz the lead can't support the digi throughput causing the blur!
Spend a fiver on a 1.3c/1.4a certified spec
lead from amazon or somewhere. Did your HDMi lead come with the Dell? http://www.amazon.co.uk/s/ref=nb_sb_...+cable&x=0&y=0 This is an interesting (first) read regarding the black bars around a live screen with a Radeon >>> http://www.tomshardware.co.uk/forum/...080-acer-h233h
I just went through this myself with an Acer P235H. The problem has nothing to do with Acer, and everything to do with ATI. You see, ATI assumes that you'll use your HDMI cable to hook up to a TV. Since most TVs are configured with overscan (i.e. the edges of the broadcasted image don't appear), ATI aggressively defaults to shrinking the image by 15% when using HDMI to ensure that the entire desktop will be visible.
The solution is to install the ATI Catalyst Control Center, available from their website. There's a section called something like "desktops & displays." On the bottom left of that tab will be an area with a small icon of a monitor. Right click on that and select "Configure..." One of the tabs that shows up has a slider for display scaling. Move the slider to 0%, and voila!
You could also try using "GPU Scaling" in those menus!