Correct, I get the OSD message. It's not a big deal to me but it's still there.
Nigel solved my issue with this, here are the steps to resolve:
***WARNING: PERFORM THE BELOW AT YOUR OWN RISK.***
(We have no idea what might happen if you enter wrong values etc so be carefull!).
Samsung 2253BW 5040x1040 no OSD warning message settings:
Note: This was performed using 180.48 Nvidia drivers and 2.4.0.11 Matrox GXM (PowerDesk-SE). Video cards are 3 x Nvidia 8800GTX's running in Tri-SLI on Vista64.
1. Right Click on Desktop and select
'NVidia Control Panel'.
2. Under the Display drop down mention on the Left, select
'Manage Custom Resolutions'.
3. Select
'Create', put in 5040 (on the Horizontal value) and 1050 (Vertical).
4. Change GDI Refresh to
60 (this is the big change thanks to Nigel, used to be 57 as per other threads), bits per pixel 32.
5. Then click on
'Advanced'.
6. In the Back-end Parameters, Timing Standard drop-down box and change it to
'CVT Reduced Blank'.
7. Then select
'Manual' from the Timing Standard drop-down box.
Setup the Manual timing as per below:
Horizontal Front Porch: 64
Vertical Front Porch: 3
Active Horizontal Pixels: 5040
Active Vertical Lines: 1050
Horizontal Total: 5376
Vertical Total: 1068
Horizontal Sync width: 64
Vertical Sync width: 4
Horizontal Sync polarity: +
Vertical Sync polarity: -
Horizontal Scan Rate will likely show 60.88
Pixel Clock will likely show 319.7500
8. Click on 'Test' and you should get perfect 5040x1050 video with no OSD message.
9. Click on OK to save those settings.
10. You may need to go back into Nvidia Control Panel and change to this newly created custom resolution (5040x1050 60hz).
Your Samsung 2253BW should show the following on the Menu OSD:
Digital
62.7kHz 59Hz NN
1680x1050
Enjoy! No more "Not Optimal" message.
Cheers
Tim
(Edited to remove mistaken paste from other thread at the bottom)