I kept finding it wanted to clip the right hand edge of the puzzle off the right hand side of the browser window. I tend to use square browsers --- am I weird?

I kept finding it wanted to clip the right hand edge of the puzzle off the right hand side of the browser window. I tend to use square browsers --- am I weird? And left-dragging to pan wasn't an entirely happy experience; partly because it kept selecting bits of the HTML on the left, and partly because I felt there was something slightly strange about the way rotation worked. Is it traditional arcball or something else? ...but in general I thought it worked really well. I played sweep mode, and liked it a great deal (I did get an unfair puzzle, but guessed correctly and won it. On, um, easy mode). Update: has something just changed? I can't delete mines in sweep mode any more --- they just blow up instead.