Hmm, I'm having more problems . This happened before, and when it did, I just restarted Blender and I was good to go. But now it won't go away. I've done a render of the RAC with a stack of tyres and a mirror behind it. There is then two walls to make it look like a showroom. Before I added the walls and mirror, I was getting good renders, that took about 30 mins in HD. But now, it takes 10 seconds in HD, and the quality is gone...The one attached took 4.2 seconds, and the reflection is gone from the floor (It was there before I added the mirror and walls).
If you need a screenshot of specific settings, let me know
I attached a screenshot of the render toolbar too.
You have to select the whole wheel (tyre, "rims", brake discs, etc..) by right clicking. Then you must select the swivel tool. use the axis' to swivel it around. Then you simply have to place them in the correct position.