My after effects cs6 keeps crashing when i add effects but it is random.. for example i might add 3 adj layers with effects on each .. different effects then randomly when i add say turbulent displace a window will pop up saying after effects has crashed due to... [ turbulent displace ]! also when i start up after effects it says there is not enough disk cach even though my disk cach is empty and i allow over 300 gb for it! 
please help! mabey i need to configure after effects more or something but any advise with be greatly appreciated.
COMP SPECS:
processor: AMD FX(tm)- 6120 six core processor 3.50 GHz
Insatlled memory (RAM) 10 Gb
system type: 64 bit
hp envy!
windows 8
i dont use any major programs while running after effects cs6 and i give it maximum piority for usage!
only programs used while after effects is running:
skype
youtube (mabey)
pandora (mabey)
thankyou,
Nathan