VGA16 video mode not supported, when running on target

Hi folks,
I configured Qt embedded for my target which is a x86 machine running busybox with the following settings:
(the version of Qt is 4.6.3)

Code:

./configure -xplatform qws/linux-x86-g++ -embedded x86 \
             -prefix /usr/local/Trolltech/Qt-target-version \
             -qt-gfx-linuxfb -qt-gfx-vnc \
             -no-largefile -exceptions -no-accessibility -no-qt3support -no-sse2 -qt-zlib -no-gif -no-libtiff \
             -qt-libpng -no-libmng -qt-libjpeg -openssl -no-nis -no-cups -depths 16 \
             -qt-mouse-linuxinput -confirm-license

I've used the following kernel modules to create /dev/fb0 :

Code:

fbcon                  
vga16fb

running the framebuffer example located in examples/qws/framebuffer would result the following output :

Code:

The framebuffer device was opened successfully.
 
Fixed screen info:
	id:          VGA16 VGA
	smem_start:  0xa0000
	smem_len:    65536
	type:        4
	type_aux:    0
	visual:      3
	xpanstep:    8
	ypanstep:    1
	ywrapstep:   0
	line_length: 80
	mmio_start:  0x0
	mmio_len:    0
	accel:       0
 
The framebuffer device was mapped to memory successfully.
 
Was in graphics mode already. Skipping
Variable screen info:
	xres:           640
	yres:           480
	xres_virtual:   640
	yres_virtual:   480
	yoffset:        0
	xoffset:        0
	bits_per_pixel: 4
	grayscale: 0
	red:    offset:  0, length:  6, msb_right:  0
	green:  offset:  0, length:  6, msb_right:  0
	blue:   offset:  0, length:  6, msb_right:  0
	transp: offset:  0, length:  0, msb_right:  0
	nonstd:       0
	activate:     0
	height:       -1
	width:        -1
	accel_flags:  0x0
	pixclock:     39721
	left_margin:  48
	right_margin: 16
	upper_margin: 33
	lower_margin: 10
	hsync_len:    96
	vsync_len:    2
	sync:         0
	vmode:        0
 
Frame Buffer Performance test...
        Average:   1319 usecs
        Bandwidth: 47.384 MByte/Sec
        Max. FPS:  758.150 fps

after running framebuffer file, the screen goes green for a moment but three squares are not shown(as it is mentioned here).

and finally when I try to run one of the demos on the target machine using the following command:

Code:

./anomaly -qws

I get the following error:
VGA16 video mode not supported
I've been googling this for hours! what I'm doing wrong? why can't I run the application on my target machine?