Cary, have you measured the AC voltage coming out of your outlets? Sounds like it may be a bit borderline/low, and the 950s power supply might be dropping out of regulation as the voltage dips even more for an instant when the air conditioning etc comes on. I actually have this problem myself, but with my audio workstation, and I lose clock and therefore sync with picture for an instant, but that's enough to screw me up if I'm doing a layback or something. I finally cured the problem by putting a variac in line between the wall outlet and my workstation. I adjust the output of the variac to exactly 120 VAC, and then even when I get a dip from my air conditioner coming on, the output of the variac does not dip enough to cause problems downstream. Generally most electronic equipment is stable down to around 100 VAC, but there are of course variances to this. Computers seems very hardy against power surges or brownouts no doubt due to the autoranging/switching power supplies in some of them. Hope some of this info helps.

[This message has been edited by soundhound (edited October 07, 2002).]