Just for the benefit of anyone who has this problem is running Linux: you can rotate the screen back to normal by typing this in a terminal:
xrandr --output LVDS1 --rotate normal
You don't even need to be root to do it, at least on UNE 9.10.
If for some reason you do want to rotate it all funky, just replace "normal" with left, right, or inverted.
Mini 9 owner since 2010-05-05!
Mini 9 / black/silver / 2GB / 4GB stec / cam / bluetooth / Ubuntu Netbook Edition 9.10
IBM Thinkpad X60 / black / 2.5GB / 160GB WD / Ubuntu Netbook Edition 9.10