I'm clearing out junk, but the 7600 doesn't like the two CRT I wish to keep. Why would that be? 7600/120 OS 8.6 64mb. I get no signal on the 17" IBM G78 and 19" Viewsonic PF790. But it works fine with a 17" NEC MultiSync70. Unfortunately that one is headed for the skip -- it overheats after a while, shuts down, then doesn't come back on for days. There was flyback flaw that plagued that particular model. I'm using a good quality Apple brand adaptor. The manual claims the default 2mb video ram will handle up to the Multiple Scan 20 at all resolutions, just with less colours than with 4mb. FWIW the NEC is a '99, while the others are '01 and '02. So I'm at the head-scratching stage now. Why would the 7600 be fussy about this?