hi, before i read your post i managed to do it, but it was eeerily simple..

1. start up easy debian. full screen
2. run x11vnc from roxterm/whatever
3. open up another roxterm terminal

4. go to your pc , connect using tightvnc to , in my case, 192.168.1.1:0
5. when the screen appears on your pc, enable numlock on your pc
6. in the spare roxterm window type 'xrandr' to see available resolutions

xrandr

7. then change your resolution type e.g.

xrandr --size 1400x1050

(small 'x')

you need to use the numeric keypad to type the numbers

then hey presto, it resizes the pc vnc window in real time.

maybe this would have been the future if ms/nokia didn't happen.. no laptops just powerful phones connecting to dumb docking stations.

I'm experimenting with client side connection settings and some give quite a good performance and some are dog slow.