No problem, I'm glad you had time to answer
I'm aware you stated you don't play games, my edit was addressed to whoever can/wants/could/would help me out ^^
Reproducing the problem requires a standard Workbench 3.1 install, WHDLoad 17.1, and a couple of games. I can consistently make it fail with 3 of them, 688 attack sub, A10 tank killer and AGE (from CAPS). AGE hangs 100% of the time at the icons selection screen for me.
I experimented those past days with Amiga Forever, and icons seem to work, but now I get random crashes during slaves installs. WinUAE logs show some DMA related stuff I've never seen before. It's maybe related to this
http://eab.abime.net/showpost.php?p=...&postcount=199?
I'll give it another go with AmberRAM and report back, thanks for your advice!