Hey Pat!
If you go to the top of the page and up in the left side under the toolbar for navigation (ie. Forum, Media, Blog etc.) there is a smaller toolbar with New Posts, Private Messages, FAQ etc.
Click on Forum Actions, then click on General Settings.
Scroll down and you'll find Forum Skin. Click on that and chose Velocity.Then click Save Changes on the very bottom left of the page.
It will make the looks of everything change.
You'll now have a Black Background with White text.
This should make it really easy to read.
Hope this helps, Tom