I have an Astro City with a monitor rotated 90 degrees to the right.
In gasetup i have choose the orientation to be rotated right
On initial boot attract mode is orientated correctly and games display correctly
When exiting a game, attract mode will be rotation incorrectly, at this point, setting attractmode to flipped will fix it. If i do this though on next restart the first time attract mode loads it will be wrong, and then only be correct again once i have loaded a game and then exited again.
Going into the orientation settings for attractmode does not fix it either, it will just through everything out by whichever rotation setting i set..
I hope this makes sense