It is not a good idea to ask solutions for two different problems in the same thread. MMake a separate thread for each problem. Put them in the most fitting (sub)forum) and give them a good, telling title. That is the best way to attrackt the people who knnows best about your problem to your thread.
Now we have next to nothing to answer you. You did not even tell us what graphics card this is about. How do you think we can know? Allways remind that we are not at your house, sitting together with you before your computer. Thus eveything that may be of importance must be told by you, or shown with the output of the computer itself.