If you go into full screen mode while on the title screen the panorama background that shows some scenery is just a black to grey gradient. I've only tested this in the snapshot 12w49a but it could happen with other versions such as version 1.4.5. Im also not sure if this is intended but I highly doubt it. also one of the pictures I attached is with a texture pack and one is without.
How to duplicate:
Open up minecraft and go in to full screen mode after the menu screen comes up.
Comments 6
Do you have any mods/HD textures installed? Do you have a graphics card and are its drivers up to date?
Then how do you know your drivers are up to date if you don't know what kind you have? See here (or perhaps another site google reveals) to attempt to identify your graphics. Try to look for either NVIDIA, AMD/ATI, or integrated graphics.
Please force a crash by pressing F3 + C for 10 seconds while ingame and attach the crash report here.
editWhoops, saw your other screenshot.
Also, unable to reproduce