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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050328 Fedora/1.7.6-1.2.5

Description of problem:
When the "nv" video server is configured, it only shows mostly green vertical lines on a black background.  The text consoles are also corrupted (white lines on a black background).  You have to reboot to restore the display.

The driver correctly identifies the card as a GeForce 6600 GT.

Version-Release number of selected component (if applicable):
xorg-x11-6.8.2-25

How reproducible:
Always

Steps to Reproduce:
1. Change driver from "vesa" to "nv"
2. Start X server
3.
  

Additional info:

Select entries from Xorg.0.log:

(II) Module int10: vendor="X.Org Foundation"
        compiled for 6.8.2, module version = 1.0.0
        ABI class: X.Org Video Driver, version 0.7
(II) NV(0): Initializing int10
(WW) NV(0): Bad V_BIOS checksum
(II) NV(0): Primary V_BIOS segment is: 0xc000
(--) NV(0): Chipset: "GeForce 6600 GT"
(**) NV(0): Depth 24, (--) framebuffer bpp 32
(==) NV(0): RGB weight 888
(==) NV(0): Default visual is TrueColor
(II) Loading sub module "vgahw"
(II) LoadModule: "vgahw"
(II) Loading /usr/X11R6/lib64/modules/libvgahw.a
(II) Module vgahw: vendor="X.Org Foundation"
        compiled for 6.8.2, module version = 0.1.0
        ABI class: X.Org Video Driver, version 0.7
(==) NV(0): Using HW cursor
(--) NV(0): Linear framebuffer at 0xE0000000
(--) NV(0): MMIO registers at 0xFB000000
...
(II) NV(0): Using XFree86 Acceleration Architecture (XAA)
        Screen to screen bit blits
        Solid filled rectangles
        8x8 mono pattern filled rectangles
        Indirect CPU to Screen color expansion
        Solid Lines
        Scanline Image Writes
        Offscreen Pixmaps
        Setting up tile and stipple cache:
                32 128x128 slots
                32 256x256 slots
                16 512x512 slots
(==) NV(0): Backing store disabled
(==) NV(0): Silken mouse enabled
(**) Option "dpms"
(**) NV(0): DPMS enabled
(==) RandR enabled