Mem card inserted into PC on Ubuntu so can check now if someone can give me quick instruction please.

Apps don't install for me whether through the app stores or downloaded through browser.

Ok worked it out. It says drwxrwxrwx for /system/app/ (but that was after I messed about with it a little bit right clicking on it)

for /data it says drwxrwx--x (that one I didn't mess about with yet so assume both of them originally said this.