Reinstalled of Windows (and reinstalled of vegas)
Reinstalled graphics drivers (12.8,13.1,13.2 beta and 13.3 beta)
memtest86: 4 passes, no errors (but will run it overnight tonight)
Other things which could help narrow it down:
Vegas has been rendering very slowly (when it works), no settings difference, but OpenCL seems to not be working now - it runs at almost the same speed as my laptop rendering!
Does anyone know what's going on?
Thank you for your time.
p.s: Sorry if this is in wrong section, I don't know what it would come under seen as it could be a hardware problem or software/drivers problem.
Ok, I tried that before, and I've done it again (first time it didn't work, put me back to original windows drivers for whatever reason), and it seemed to let me back into Vegas, although loading a project it still froze me, but without a blue screen, it was more like a system-wide crash, with no errors at all. mouse stopped, nothing worked, although I could hard-reset.
I've now hopefully fixed the problem (I just deleted the old projects and started new ones) and I've not had the freezing, or blue screens since. Thanks for all the help!
If the old projects were done in an earlier version of Sony Vegas or a different video card or different PC then problems as such might occur. Also, I just noticed a reference to the word "laptop", is this a laptop you are using?
You should refer to the system requirements of Sony Vegas 12 -
Vegas Pro 12 system requirements
•Microsoft® Windows Vista® 64-bit SP2, Windows 7 64-bit, or Windows® 8 64-bit
•2 GHz processor (multicore or multiprocessor CPU recommended for HD or stereoscopic 3D)
•500 MB hard-disk space for program installation
•4 GB RAM (8 GB recommended)
•OHCI-compatible IEEE-1394DV card (for DV and HDV capture and print-to-tape)
•USB 2.0 connection (for importing from AVCHD, XDCAM EX, NXCAM, or DVD camcorders)
•512 MB GPU memory
•Windows-compatible sound card
•DVD-ROM drive (for installation from a DVD only)
•Supported CD-recordable drive (for CD burning only)
•Supported DVD-R/-RW/+R/+RW (for DVD burning only)
•Supported BD-R/-RE drive (for Blu-ray Disc™ burning only)
•Microsoft .NET Framework 3.51 (included on application disc)
•Apple® QuickTime® 7.1.6 or later for reading and writing QuickTime files
•Internet Connection (for Gracenote MusicID Service)
•GPU-accelerated video processing and rendering require an OpenCL™-supported NVIDIA®, AMD/ATI™, or Intel® GPU with 512MB memory or more. (please see the GPU acceleration page for more detailed specifications and driver requirements)