C&C Generals

Resolutions > 1024x768 are crashing my machine.  Please help!  My rig: 

Operating System
    Windows 8.1 64-bit
CPU
    AMD FX-6300    14 °C
    Vishera 32nm Technology
RAM
    16.0GB Dual-Channel DDR3 @ 803MHz (9-9-9-24)
Motherboard
    Gigabyte Technology Co., Ltd. 990FXA-UD3 (CPU 1)    36 °C
Graphics
    DP3001 (2560x1600@60Hz)
  MSI  2048MB ATI AMD Radeon R9 200 Series (MSI)    34 °C
Storage
    931GB TOSHIBA DT01ACA100 (SATA)    38 °C
    2794GB Western Digital WDC WD30EFRX-68AX9N0 (SATA)    31 °C
    29GB SanDisk SDSSDRC032G (SSD)  (ExpressCache)
Optical Drives
    ATAPI iHAS124 C
Audio
    Realtek High Definition Audio