Vista keeps crashing, cannot understand why. HELP!

I brought Windows Vista 32bit OEM last week got round to installing it thursday night. I done everything you should, installed all the latest updates, drivers etc...Then i installed the latest catalyst driver for my 1900xtx board. This is when i got the infamous crashing problems. It was crashing just after windows loaded up. so i un-installed the catalyst driver. What happens? it continues to crash so i looked at the event viewier and it looked as if the there was a problems with my creative Audigy 2 zx, the driver was causing a confilct or something, problem:
"IRQARB: ACPI BIOS does not contain an IRQ for the device in PCI slot 2, function 0" <<< So i tried the sound card in every PCI slot, still got same errors/crashes.
So i have took my card out just to see if windows would stop crashing. But its still happening, obviously with no ACPI errors as i have no cards installed in any pci slots. Apart from my 1900xtx card in pcie slot. Anyways below i will list the errors messages from event viewer below, i don't understand half of these codes maybe on you peeps can help, please:

last event msg when my computer crashes:
The previous system shutdown at 11:11:06 on 02/06/2007 was unexpected.
Binary data:
In Words

0000: 000607D7 00020006 000B000B 00F20006
0008: 000607D7 00020006 000B000A 00F20006
0010: 00000960 0000003C 00000001 00000960
0018: 00000000 000004B0 00000001 00000000
In Bytes

0000: D7 07 06 00 06 00 02 00 ×.......
0008: 0B 00 0B 00 06 00 F2 00 ......ò.
0010: D7 07 06 00 06 00 02 00 ×.......
0018: 0A 00 0B 00 06 00 F2 00 ......ò.
0020: 60 09 00 00 3C 00 00 00 `...<...
0028: 01 00 00 00 60 09 00 00 ....`...
0030: 00 00 00 00 B0 04 00 00 ....°...
0038: 01 00 00 00 00 00 00 00 ........

XML VIEW:
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="EventLog" />
<EventID Qualifiers="32768">6008</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2007-06-02T10:57:01.000Z" />
<EventRecordID>2754</EventRecordID>
<Channel>System</Channel>
<Computer>Katie-PC</Computer>
<Security />
</System>
- <EventData>
<Data>11:11:06</Data>
<Data>02/06/2007</Data>
<Data />
<Data />
<Data>203</Data>
<Data />
<Data />
<Binary>D7070600060002000B000B000600F200D7070600060002000A 000B000600F200600900003C00000001000000600900000000 0000B00400000100000000000000</Binary>
</EventData>
</Event>

----------
R300 Prob:
The description for Event ID 52236 from source R300 cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
Binary data:

In Words
0000: 00000000 00000001 00000033 C000CC0C
0008: 00000000 00000000 00000000 00000000
0010: 00000000 00000000

In Bytes
0000: 00 00 00 00 01 00 00 00 ........
0008: 33 00 00 00 0C CC 00 C0 3....Ì.À
0010: 00 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........

System Spec:
DFI LanParty CFX3200 Crossfire / AMD Athlon 3700+ SD (2.860GHz) + Ninja Scythe Heatsink / OCZ 2GB PC3200 [2-3-2-5 @ 166 5/06 (DDR333)] / Sapphire Radeon x1900 xt-x / Sound BlasterAudigy 2 ZS Platinum / Western Digital Raptor 74GB 10k rpm / Maxtor 160GB 7,200 rpm / Hiper Type R 580W (Peak 630)

I agree. Uninstall the sound driver and remove the ATI Catalyst and try just installing the stand alone driver for the video card.

Once Vista stops crashing, install the sound card and go to Device Manager and install just the driver for the card. See if that helps.

If it's neither of these... then I don't know... maybe RAM issue? :?