Yenkazu thanks for your answer, I'll see the FAQ (actually I've seen it before but wanted some less difficult options like for example deleting some unwanted files)!
I brought 2 new problems...
1) Angry Birds Space won't work for me, it stays in the loading screen and some minutes after, on its way to change screens, some music plays and it closes by itself.. Loaded many times, could't see anything else apart from the loading screen.. Me wanna play this badly!
2) Having trouble with music players, I never had a problem in the stock rom, was able to listen to music for hours but after switching to miniCM7pro, all music players suddenly stop working, seen this with the android player, with PowerAmp and now with PlayerPro, the player closes and I have to manually reopen it just to see it close again after some seconds, can't even play a game while listening to music...what can I do? It's REALLY ANNOYING!!
1. I dunno about AB space, will try out tomorrow
2. maybe bad instalation rom or bad sdcard, try reinstall rom and format Ur sdcard
NB : why U don't try MiniCM7 Pro by nAa ?