Those posts are actually talking about the Palm version of the game - Village Sim.
The problem that you are describing with Virtual Villagers is caused by trying to resize the game window. Since the game's resolution is fixed, resizing the window will misadjust the calibration and you will have to exit and restart the game to recover (unless you're very good at putting the window back to the correct size)!

The only way to avoid that problem is to leave the window size alone!
