Default [Q] Android x86 kitkat on Dell inspiron 4050 Audio Problem and VPN

Dear developers i am in big trouble . I installed android x86 kitkat on Dell inspiron 4050 . every thing is working very fine . i have just 2 problem.
1. I cant listen any sound . may be a little sound from internal speaker but it is almost unhearable. How to fix it?
2. No VPN software is Working.
Plz reply as soon as possible