one of my opera side panels was on (width 40px) and it complained, and I gave up and came back to read the comments, then went back in and switched the panel off and it was fine. I would suggest, why not work out exactly how many pixels it has to be to not look rubbish. then set the limit at that. or, put it as a warning that it could look much better as it is intended to be used at a higher res. Once read, the message can then be dismissed?

In all honesty, the size requirement is terrible. I took one look at the page saying I need a bigger window and hit ctrl-w and thought: "well maybe that was a cool page, the headline sounded good. Oh well". I'm not against resizing my windows, it's just that with nothing but a headline to go on, I'll just move on to the next thing. Even if you don't show me the app, but instad a splash page and some screenshots that keep my interest, with an explanation of why I need to resize, I'll probably think, "Oh ok, and it's new, cut them some slack" and resize away.