When using Alinco it's best to go to your documents folder and then to the Decal Plugins folder and make a copy of the Alinco folder. That way when this happens, you have a backup that you can use to quickly restore everything back to normal.
In my experience the settings getting set to defaults has something to do with running multiple clients at the same time and logging them in and out too fast.
If you are just losing settings that you just set, that's usually because you have more than one client running when you are making the changes and you log off the client that you were using to make the changes first. Logging off the next client will then overwrite the changes you just made.
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Endy al-Unsane 275 Sword / Endy al-Unsane III 270 Mage
Peerless Endy 275 Mage / Endy Mion 249 Bow
Child of the Quiddity 220 Mage / Vorkosigan 220 UA
Endy Tinkertide 275 Tinkerer
Endy's Tinkering Calculator:
http://the-unsane.com/