"Not Enough Free Disk Space To Complete Paste Operation" Error in Root Explorer

[Guest Avi GNG]

Hello Guys,

I'm struggling for a while now to understand why I get this error while trying to copy some files to /Data/Data/com.blablabla folder

I have plenty of space there (over half a gig).

I'm on Modaco's r3, Rooted again with easy root (to get rid of superuser pop problem), no lag fix applied, not using any a2sd obviously.

I've read somewhere that we might not have a write access to system !?!?! (WTF ? have no idea what that means .... we have root access ....)

I'm using root explorer, mounting the r/w of course. (tried 4 other file managers too ...)

Help wold be really appreciated.

Avi