Well seems I was beat to this post, advertisements and all!!

I highly suggest just removing all old atarixlbox directories, including any saves. Saves are no longer backward compatible something I HAD to change in order to get record/playback to work properly, among other things. Old configs should import just fine, though, but why bother with autodetect picking up most everything!

If you want more information, click on the link above for the ".nfo" file. Here is some more information in the readme which I did not include in the .nfo just because the list is longer than my rap sheet (uh, the one in GTA IV, ok??)..
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Special thanks....
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X-port for porting a great collection of emu's over to the xbox, releasing the source code, and answering my stupid questions.
The beta testers - NE146, Jibbajaba, mimo, panamajoe, Pyjamarama, remowilliams, Stephen, telengard, paranoid. I know you all are busy but thanks for the support and input.
Atariage (Albert in particular) - For providing a place for my beta testing thread. For the 5200 overlays that I used as a template. For encouragement in general.
Kr0tki for the alternate NTSC palette and info to make Bounty Bob playable.
Foft for the pokey sound engine from the GP2x port of A800.
HiassofT for letting me use Picodos as a built in disk menu.
Piotr Fusik for his ASAP code.
Awinplus team for some borrowed ideas.
Brian Berlin (aka eegt97) for info regarding getting some 5200 games to work. Brian did the pc 5200 emu kat5200. Be sure to check it out!
Various people on the Atariage forums for providing information I needed (for example info regarding Trackball mode).
Comments of support from various interested parties.
If I missed anybody shoot me an email and I'll update this file.
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**** Know Issues ****
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save state restores from samba/relax games where multiple disks are involved wont work automatically.
H: device issues. Atari dos 2.5 cannot delete files on the H: drive. Not much I can do about this one.
5200 analog calibration seems to get out of wack when using fast forward. Only happens during the in game calibration (usually at start of game, or after dying) so just try not to FF at that point.
Disabling attract mode in games can cause weird problems (see Miner 2049'er) so use it only demo's. K??
Super Breakout (8-bit version) does not have any sound.
leftover Record/playback time is incorrect when recording/playing paddle games. (I'll fix it l8r)
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**** To do (the feature creep list) ****
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Unfortunately, some games don't use the full paddle range (e.g. optimal range for "Arkanoid" game is 0-88). The AWinplus allows setting the min-max paddle range.
Add a startup sound to be played when emu starts up?
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Configuration tips
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Well I never was 100% happy with the config screen but I never got a whole lot of input regarding it. So here are a few hints on getting games going...
If the emu finds a config file, use it. I have pretty much every 5200 game covered and several A800 games from Atarimania and fandal's site.
Most everything else you can just hit the B key to exit the config screen and you will be set. Thanks to the autodetect and auto config search feature for the most part 90% plus of the games will be playable off the bat.
Any A800 game not from the US is a PAL game. Don't worry about Japan the a800 didn't exactly go big over there.

If the game is a disk and it stops on the DOS menu with the message "please type 1 letter" that means it is a basic program. Go back into config and turn Basic "On".
If the game fails to load, for whatever reason. Try switching machine type to "Atari 800".
If that doesn't work set machine type back to "Atari 800xl" and set "Patch SIO Routine in OS" to no.
If that doesn't work, I don't know what to say.

Actually there is the odd game that requires Basic to be enabled or it will kick you back to the game select menu "immediately".
I almost wrote a "creating cheat codes" tip section, but laziness overcame me.
Enjoy and if you have any questions, concerns, or notice an issues just type away!
This post has been edited by madmab: May 9 2008, 07:07 AM