Pictures have cyan color cast

when it switches to B&W, it's showing you that what you're framing is in a low light condition. perfectly normal behavior as described in the manual

Artificial light is a different colour than daylight. Our eyes compensate, so we don't notice it much. Most digital cameras can compensate too, but whether they do or not depends on the settings. The setting you want to investigate is color balance. If this is set to daylight, it will give an orange cast to pictures taken in tungsten lighting, and a greenish cast to pictures taken in flourescent light. If it is set to artificial light, pictures taken in daylight will have a bluish cast. The best setting for most people is Auto, if your camera has it. That will let your camera decide, and usually it will get it about right.

Good Afternoon,
Because Konica Minolta no longer exists in the photographic industry, many of their support channels have been filtered over to Sony Corporation, who was the purchasing agent of their photography division.
Below is a link to where you can download an English manual for your DiMage A2:
http://ca.konicaminolta.com/support/manuals/digital_cameras/dimage-a/index.html
And the one you want can be followed to this link:
http://ca.konicaminolta.com/support/manuals/digital_cameras/dimage-a/dimage_a2/D_A2_E.pdf
or you can simply click on it from the first URL provided.
Hope this helps!
Lompanow

Have you formatted the cards in the camera or in the computer?

I have an earlier version of this camera: a minolta  dimage 7. While your camera is better(later) than mine beyond ISO 100 these cameras tend to be noisy.  The only solution is to asscpt the noise since hou will need a high ISO in order to use an acceptable shutter speed  and use a noise reduction program (noise ninja, neat image, helcion noise filter). One of these may be free- i think helcionbut aside from changing to a DSLR this is the best solution

hi, i need help to find a good setting 4 my camera, minolta a2! could u help me?
thanx, tibi

The DiMAGE A2 sensitivity can be set to Auto, ISO 64, 100, 200, 400, and 800. When Auto is selected, the camera automatically controls the sensitivity within the range of ISO 64-200.

Yes, it is possible to control the camera from PC with "DiMAGE Capture DCA200". (sold separately) It is necessary to update the camera's firmware to use with the DiMAGE Capture. (the firmware is included in the CD-ROM attached with the product.) * DiMAGE Capture DCA-200 will be available at the end of March, 2004.

The DiMAGE A2 has a 46mm (1.8 inch) low-temperature polysilicon TFT color LCD Monitor, which displays approximately 118,000 pixels. This LCD monitor is tiltable (20 deg. downward and 90 deg. upward).

After a quick look at the manual you can find in the setup menu 3 "reset defaults" which shoud set you camera back to its first settings.