My Nikon d40 is not showing any images/ info on its screen

If the D40 monitor showed you the image while taking the picture, there was something seriously wrong with the camera, which now appears to have fixed itself.

The D40 works as SLRs have worked for half a century, giving you the image through the viewfinder. The LiveView capability, allowing you to use the LCD monitor like a point&shoot camera, is a relatively new development, which Nikon introduced with the D3 and D300 a year after the D40.

That's the way the D40 works. The monitor is for menus and picture review, not to show images before shooting. Nikon introduced the LiveView capablitily with the D3 and the D300, introduced after the D40. The D40 works as SLRs have worked for half a century, giving you the image through the viewfinder.

I realize these aren't the answers you wanted to see, but the D40 does not have any live view capability, nor does it shoot video. Nikon intended the D40 as an entry-level dSLR, with a minimal feature set. In fact, they didn't introduce the video until the D90, introduced more than two years after the D40. The least-expensive Nikon dSLR with both of these capabilities is the D5000.

You don't. The D40 works as SLRs have worked for half a century. Only more recent dSLRs (Nikon started with the D3 and D300) have the LiveView capability that lets you handle your dSLR as a point&shoot.

The Shooting Information screen was introduced with the D40. The older D80 does not have it. Instead it shows almost all of the information in the control panel and/or viewfinder, though you have to delve into the menus for some of it.

Most of the settings you could change via the Shooting Info screen on the D40, you can change by pressing the appropriate button and turning one of the command dials.

The D40 was intended as an introductory dSLR, doing more handholding for new photographers, putting things into visual, menu-driven screens. The D80 was intended as a midlevel camera, allowing faster operation using more buttons. It does less handholding, but once you learn where the controls are, it actually is faster to use. (Okay, that was based on my personal experience, since I've used both.)

The Nikon D40 camera does not have "live view".

When you are viewing images with the histogram showing, press the down arrow on the command dial and the screens will scroll through various overlays until you reach the viewing screen you want.

same problem here? did you find a solution? please mail me at martin.igle[at]gmail.com

You have a short in your button board in your camera or a bad button board. Send into Nikon to repair. You can also look on Ebay for the part if your technical skills are up to self repair.

You probably have "bracketing" turned on. In your menu settings, search for bracketing and make sure it is off.