Ah, thanks I remember those things now. Well, you can easily program a stack for yourself. However, awakelib is for sure not the reason for your problem. I remeber Slin having done some of these AR experiments. That's pretty interesting stuff.

some one has another idea of how to clean the virtual memory or the ram, because the level_load function mess around with some of my libraries

That should be pretty impossible.

However, if you don't want to use level_load you can use level_mark and level_free as well.