"debugger on IRIS 3130"

[Dhekne c/o NCST]

Hello !!
I have been trying to use the debugger on IRIS 3130, 'edge'.
But I am unable to. Whenever I use it on non-graphics programs, it is
OK, but for graphic programs, it starts behaving funny. Mainly, 
it just exits from the program or gets stuck. This is the case 
with 'dbx' also. However, I have found that it works in some cases -
	When you are using single buffer mode, and no popup menus.

	The moment you use either double buffer mode or popup menus,
	it starts giving problem. Actually it works till the point
	you have set the break point, and on reaching it, it exits.

	Has anybody faced such a problem ? Is there any solution ?

	We are looking at the possibilities of upgrading 3130 to 
4d/20. Is the 4d/20 faster than 3130, or it is just a cheaper version
of the higher 4d models ? Does it contain any geometric engines ? 
( the technical details of 4d/20 do not say anything about them ).
How do the users rate 4d/20 in comparison with 3130 ? 
(questions ! questions !!)

		 suggestions ? help ?

		 THANKS !!

		 Sunil Kulkarni
		 ( dhekne at shakti.ernet.in )