SYS info..

[Darrin]

Some A2000 models can be switched between PAL and NTSC via a jumper on the motherboard (If they have the right type of Agnus).  I've done it myself and turned my NTSC A2000 into a PAL one on boot up.

[Darrin]

Yes I am in the states and I will check the motherboard.  Like I said in my *edit above..
screen mode prefs show only NTSC choices.  However if I boot into PAL through the early startup(ie holding the mouse buttons etc, etc...) In the screen mode prefs I get PAL and NTSC choices.  All my programs/games run just fine when I normally boot the machine.

Rich

Are you talking screenmode prefs in Workbench?  Do you have the PAL monitor type in your DEVS/MONITORS draw?

I found the mod by searching online.  My A2000 is an ECS model (I can't remember which revision, 6.3 IIRC) and you need to remove the drive bays to access the jumper J102.  I didn't bother putting a switch on it and just cut the bridge and left it as PAL.

Not all Agnus chips can be switched between PAL and NTSC, however it is possible that soemone removed a NTSC Agnus and replaced it with a PAL one if this is a used computer.

[Darrin]

And PAL also displays at a painfully slow 50Hz refresh (25Hz in Interlace!), as opposed to NTSC's higher 60Hz.  In other words, flickery as he$# on a 1084 monitor.  I don't know how those guys in PAL countries stand it, LOL.  

We learn to blink rapidly in time with the flicker.  That way the screen looks rock steady.  

I've got a Commodore SDFF card in my A2000 with the same Amber chip used in the A3000.  It works great (plus I have a Cybervision 643D for some nice Workbench screens).

[Darrin]

I'll be home in a few days and I'll be able to check mine.