The problem that I encountered could be either due to a malfunction or wrong setup. I hope that you will be able to help me find which is the case and what can be done about it.

I own a Minolta Dimage 7Hi camera. Recently I noticed that when I try to take a picture under very bright light conditions with a white background such as snow or white buildings, I run into saturation conditions where I get a saturated picture and the Shutter-speed and the Aperture displays turn red on the monitor.
It happens in the Program (Automatic), Aperture priority and Shutter priority modes. The only way that I can take pictures under these conditions is in the Manual mode.

According to the manual, the shutter speed range in Program exposure mode is 8 to 1/4000 sec. The problem is that it never gets to these values when it runs into saturation and the most that I got when I played with the aperture was 1/750 to 1/900.
When I am using the manual exposure mode, I can get to the higher levels but in this case I am limited to 1/2000 sec.

Is there any solution for this problem?
Thanks in advance