Default [Q] Samsung GTS5300 PureKAT v3 little problems

Today I build PureKAT v3 to my s5300 and for now it looks good except two little things. At the pin code screen, I can't see the numbers I entered. Fortunately it accepts the code. The other thing; sometimes when I reboot the phone it freezes. I know it's not that important but if there's a solution I'd like to learn