Ok i've now looked in my console, it doesn't seem report any errors (unless i'm looking in the wrong place) since Toast stays in my dock saying 'Application not responding'. So I force quit it and I get:

([0x0-0x107107].com.roxio.Toast[33254]): Exited: Terminated

which i think is the standard response from a force quit.

These are the details for my graphics card driver:

GeForce 6600 GT:

Chipset Model: GeForce 6600 GT
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 128 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0140
Revision ID: 0x00a2
ROM Revision: NVinject 0.1.5
Displays:
SDM-HS95:
Resolution: 1280 x 1024 @ 75 Hz
Depth: 32-bit Color
Core Image: Hardware Accelerated
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Rotation: Supported
Display Connector:
Status: No display connected

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 Mac OS X 10.6.4 Retail || Intel Core2 Duo E8200 2.66GHz || Gigabyte G31M-ES2L || GeForce 6600 GT 128MB || Realtek ALC883 Audio || Realtek RTL8169 LAN || Samsung SpinPoint F1 1TB HD || Sony Dual Layer IDE DVD RW DW-D22A || Apple Aluminium Keyboard || Mighty Mouse

 MacBook Pro || 2.4Ghz Core 2 Duo || 200Gb HD || 2Gb Ram || NVIDIA GeForce 8600M GT

 iPhone 4 || 16Gb