When I start the game up, the splash screen for UT3 comes up and the screen goes black. It just sits there. What's going on? It worked a few months ago just fine, but now it's being stubborn.

System Specs:
Intel Pentium 4 Processor 3.2 GHz
Dual Channel 2048 MB of ram
Radeon X1650 (256MB Gddr3 Pci-e)
Windows XP Pro, SP2
Seagate Baracuda HD(sata, 160gb)