Hi amcgee and welcome to Digicamhelp!
Your camera has several white balance options:
• Auto
• Manual
• Fine
• Shade
• Fluorescent Light (daylight)
• Fluorescent Light (warm white)
• Fluorescent Light (cool white)
• Incandescent Light
• Custom
Select the white balance setting that best matches the dominant source of lighting. Take a few test shots and see which setting provides the best results.
Try the custom white balance control too. Your manual should provide specific instructions. Generally, when using the custom white balance control, point the camera at something white and the camera adjusts itself so white is a pure white. Your images should be free from having a color cast.
Here's additional information about white balance:
http://www.digicamhelp.com/white-balance/index.htm