PCS:Really bright at night
The night landscape is really bright.
Causes and Solutions
This is an effect of setting Ultra Low video settings, which turned on Lite Brite. This setting can also be toggle via the Oblivion.ini.
Solution #1: To turn it off in game open the console and type "tlb" (toggle lite brite).
Solution #2: Open the Oblivion.ini file and set 'bFullBrightLighting' (use CTRL+F to search) to 0.
Solution #3: Run the launcher > choose
Options > change video quality preset.