Card crashes my pc to blue screen when i hit record. everything works but this function and its what i bought it for. to record video from vhs to computer. please help

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your computer hard drive

Test all leads that attach to your hard drive including electrical extensions IDE,SATA

the leads from your ((MOTHERBOARD TO YOUR HARD DRIVE)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electic extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and to have an end so any faulty leads will end up with a computer error

follow the troubleshooting procedure a computer needs all of the data and electrical current to travel through every device and to have an end to be able work properly

a motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive if its a flat ribbon 40 pin type IDE replace it this will be the first to fail check all electrical extensions make sure they are securely seated even the cd/dvd floppy drives need to have current go through make sure these drives are working also it could be a dirty computer clean all of the dust from your computer you could use a vacuum cleaner but whatever you use make absolutely sure there is no moisture gets to anything in your computer
another possible reason could be a memory dump you might be running to many programs at the one time putting to much strain on the central processing unit
try uninstalling a few unecessary programs also you might not have enough RAM random acess memory to check what is running when your computer is running scroll to the bottom of your screen toolbar right click select task manager applications and processes if you see something you dont need running select end now
to check how much ram you have click start right click on my computer select properties you will see all of your computers details
then you should defragment your hard drive click start all programs accessories system tools you should see the disk defragmenter
http://download.cnet.com/ccleaner/
hope this will help you

Try placing it in a different PCI slot. The IRQ may already be assigned to handle too many for this card. Also state the blue screen code if you can, the make and model of computer motherboard would be helpful as well. In your Bios see if your shadowing is enabled if so try disableing shadowing.