tvtwm has several problems which manifest themselves when using
	modern applications like firefox3 or gimp or many others.

	1) If you use the 'print' menue in firefox3 and 'cancel' after
	the firefox3 menue comes up, twm will restart, which de-iconifies
	your icons and reshuffles window locations. This is very annoying
	and makes tvtwm unusable if many windows/icons are in use.
	Similar effects come in many modern applications which trigger
	file selection popups.

	2) If you stop and restart tvtwm, all windows sometimes move
	a little bit to the right and a little bit to the bottom.
	This is due to incomplete support for window borders calculations
	during restart.

	3) If you use the virtual screen feature of tvtwm and
	select eg. virtual screen 5, then stop tvtwm and restart it,
	all windows in virtual screens 1-4 become unaccessible because
	the window location is wrongly calculated.

	4) If you start a second firefox3 profile in a different
	virtual screen n than virtual screen 1, the window offsets during
	the iconify operation will be miscalculated, which causes
	firefox3 windows to disappear after one iconify/deiconify/iconify
	cycle. They will not really disappear, but their x coordinates
	are miscalculated and the window will reappear in virtual
	screen n*2.

	All those bugs make tvtwm unusable with modern applications.
	The tvtwm port attached contains the patches to fix this.

How-To-Repeat: 	1) how to repeat
	- start some xterm, iconify it
	- start firefox3
	- press ctrl-p in firefox3 and select 'cancel'
	the iconified xterm will de-iconify and loose its coordinates.

	2) how to repeat
	- startx and start tvtwm
	- start some xterm
	- stop tvtwm and restart it
	the window will move for the values of 'border and title' pixels
	to the right and bottom.

	3) how to repeat
	- start tvtwm with virtual screens, with
	  VirtualDesktop  "eval(WIDTH*7)`x'eval(HEIGHT)"
	  "F2"    = m     : all   : f.scroll "+1+1"
	  "F5"    = m     : all   : f.scroll "+4+1"
          in the .twmrc
	- start some xterm in virtual screen 1
	- select key F5 to move to the 5th virtual screen
	- start some other xterm in virtual screen 5
	- stop tvtwm and restart
	virtual screen 5 will become virtual screen 1 and
	the screens below virtual screen 5 will become unreachable.

	4) how to repeat
	- start tvtwm like in 3)
	- start a firefox3 browser in virtual screen 2
	- iconify, deiconify and iconify again
	the icon will appear in some other virtual screen (3, 4, 5?)
	or will disappear because it will land in negative y coordinates