ChrisW6ATV's response is somewhat wrong, so here's what you need to do...
In order to get 1:1 pixel mapping, set your Picture Mode to 'Just Scan'. If you're still seeing underscan or overscan, then go into your video card settings and adjust these settings accordingly. I don't know about Nvidia cards, but with ATI cards, the under/overscan setting defaults to 15%. Setting this to 0% will fill out the screen.
And labeling the HDMI input to 'PC' is [imo] not recommended. If set to 'PC', the Edge Enhancer is forced to High, which will introduce ringing/halo artifacts around high contrast items (i.e., black text on white background).
If you're using my settings, then your H/V Sharpness is probably at 33/55. Just note that these aren't absolute, you may have to tweak these by +/- 5 in order to compensate for manufacturing variances. Also, I recommend you use rawadesh's settings (but keep H/V Sharpness and Backlight to 33/55 and 70-80, respectively). My old settings are a bit too blue.
Once you get 1:1 pixel mapping, under/overscan corrected, and H/V Sharpness set, then your text should be crisp and sharp. If not, then you may be failing 4:4:4. Read Q11 and Q2 of the FAQ for information in regards to this.
Originally Posted by sandyr
i enabled the THX- it gave 2 picture modes, THX cinema and THX bright room. These were in the TOOL OPTION 4 in the menu. Could not find the AC3 option. Also could not see the firmware version used in the tv.
I am riht using a standard reciever which only has s-video out and tv has no s-video. so i am connecting the tv to reciever with composite so the letters in the menu guide of the reciever are not smooth. they have rugged edges. i have edge enhancer OFF. do i have to tweak something to get it to smooth letters or only way is to connect to component out.
To determine firmware version, go into Menu, then into 'Customer Support' (I think its the red or blue button), then into the system info area. Firmware version will be there.
Composite connections will yield pretty bad picture quality due to its technology limitations (low resolution, analog nature, limited color space, etc). Because of this, nothing on the TV settings will help you out. Also, since your receiver doesn't have a native component output, a s-video to component converter will not help you out at all, since you're fundamentally limited by the receiver itself (you can't create "detail" from nothing).