I am having a lot of trouble with UDK. About a month ago it was running fine, no problems at all. Lately I have not been able to create any type of of terrain without UDK freezing on me. I am also unable to use the material editor or even create a new empty material. The only thing I know that I have done different is to install a new driver for my video card.
Here are my computer specs (though I don't understand how they would work fine and suddenly cause problems a month later)
AMD Phenom II X6 1090T
16GB 1333 memory
EVGA Nvidia GTX 560
Asus M599X evo motherboard
This is really starting to cause me a lot of problems so any suggestions would be greatly appreciated.