When I bought my dell inspiron 8600 laptop last month, it did not came with the "best" display setup for the screen. I have WSXGA+ screen and it came with 1680x1050 native resolution set by dell. Well, that was almost unreadable. I reduced the screen resolution to 1280x800 and used it for almost 3-4 weeks. It still felt odd every time I fired up my laptop.
Finally, yesterday I realized that there is 1280x768 option available. I promptly moved the cursor left and tested that resolution. It felt perfect with 96 dpi text settings.
This is great. Anyone who have 15.4 inch WSXGA+ widescreen should try 1280x768 resolution. This is the ideal resolution. I am loving my laptop now.