Minecraft Sound Issues

[Lyerae]

Hi guys, I have a problem with sound on Minecraft.
Whenever I try to enable it, it crashes the game. I've done clean installs of the game, with nothing changed at all, and it still crashes.

Here's the laptop specs:

Intel Pentium 'T2390' (Dual-core, 1.86GHz), 32-bit.
3GB DDR2 RAM.
Mobile Intel(R) 965 'Express Chipset Family' (448MB VRAM, shared).
Windows Vista Home Premium SP2 (32-bit).

That's all I know on it, taken from CPU-Z.

Any and all drivers should be updated (it's my dads laptop, and I tell him he needs to be updating them, and I think he's updated them.), the OS should be updated to the latest (it's set to do so automatically), and Minecraft is on the latest version (Beta 1.6.6).

Thanks for any help.

 

[Darthfett]

Any idea what model the laptop is?

 

[Lyerae]

It's a Toshiba Satellite L305, I think.