how comes all my games are saving as ".sav" instead of ".nds.sav" all of a sudden? it just happened, so all my ".nds.sav" files are not loading and its starting a new game.
Perhaps if you had read the changelog so you knew what you were updating to? It mentions the .sav thing.
Version History
---------------
AK-AIO 1.5
+ Fixed issue with the hiddenFileNames globalsettings option not accepting non lowercase filenames.
+ Optimizations to the AK2 dldi should be a little quicker now.
+ Update Dutch translation (Thanks MarioWaza).
+ Update Spanish translation (Thanks Pendor).
+ AK2/AK2i clones are now officially unsupported.
+ Gba icon has been removed from main selection screen on DSi.
+ Removed outdated plugin system.
+ Per rom GBA frame support (256x192x15bpp)
- Place BMP with internal game id of gba rom in __aio/frames.
+ Added support for save sizes up to 256Mbit (32Megabyte). + .sav is now default save extension.
+ Reverse Alphabetical List sorting (set sortListAlpha=0 in globalsettings.ini).
+ Auto-Anti-Piracy Patcher updated.
+ ARGV support for homebrew.
+ New DSi detection (Shouldn't show slot2 icon after softreset on ak2i now).
+ Disable start menu by adding "LockStartMenu = 1" to your globalsettings.ini
+ Fixed Trainer Toolkit support.