ok hello guys. after a random amount of time during gameplay
(this can be immediatly or up to 3 hours) the game freezes.
and the loops audio. sometimes a whole character's sentence
sometimes a split second of audio which makes a really annoying
sound. i cannot ctrl-alt-delete or minimise the game so im forced
to manual shut down (holding the power button of my pc down for
about five seconds or so) i've fixed my registry, ran as administrator,
ran the game in safemode (halo pc/ce has a safemode option) and completely
removed and reinstalled the sound and video drivers. i dont want to reformat
my harddrive because i have MASSES of data on my pc (almost the whole harddrive's
worth) PLEASE help!
thanks in advance!

Reuben
PS: Computer specs!
Operating System: Windows Vista™ Home Basic (6.0, Build 6002) Service Pack (6002.vistasp2_gdr.101014-0432)
Language: English (Regional Setting: English)
System Manufacturer: Compaq Presario 061
System Model: EK350AA-ABU SR1639UK GB540
BIOS: Phoenix - Award BIOS v6.00PG
Processor: AMD Athlon(tm) 64 Processor 3700+, ~2.2GHz
Memory: 1022MB RAM
Page File: 1736MB used, 571MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
DxDiag Version: 7.00.6002.18107 32bit Unicode