Comer,
Mine's running at 75hz, no tearing. I read my manual (shock) last night, and sure enough it says 800x600 and 1024x768 at 75hz is doable, there's a huge table of poss. resolutions, refresh rates anf horizontal freq. in the back. I'm a lucky b****** I was green as grass when I bought it, only marginal improvement since! Did you say once you had a Tosh MT, or was that someone else?
You might find 50hz hard to find in a CRT these days, people usually want the opposite from their monitor! It's a nuisance having to fiddle constantly with your settings, one of the biggest bugbears with the HCPC concept. I solved this one by not having a monitor, using s-vid out to the TV if there's some fiddling to do and a compelling reason not to use the projector. Currently, I have a dust prob, got the builders in....