Originally posted by: dbarton
Just as a test I'm trying 1280*1024 on my 17 CRT and the text is *small*!
A 19" LCD is significantly larger than a 17" CRT in terms of viewable area. If you're okay with 1024x768 on your 17" CRT, you should be fine with 1280x1024 on a 19" LCD.
As suggested, run 1280x1024 and scale up the font sizes if you need bigger text (although it should be about the same absolute size as 1024x768 on a 17" CRT). Running a non-native resolution on an LCD monitor will make everything slightly fuzzy, which is probably worse than having it really sharp but a little smaller.
17" CRT (assumed 16" diagonal viewable, 4:3 AR): viewable area is about 12.8" x 9.6". That's about 80dpi at 1024x768.
19" LCD (19" viewable, 4:3 AR): viewable area is ~15.2" x 11.4". At 1280x1024, that's about 84dpi, just a hair smaller than 10x7 on a 17" CRT (but sharpness will be much better, since most 17" CRTs are simply awful overall for PQ).