Yet another problem with my 44vsl i bought a few weeks ago

it was running fine for the past few weeks and now when i turn it on my pc says
audiobox vsl driver did not install properly would you like to retry?

so i retry the it says "could not be initialized please check hardware."

ive reinstalled the drivers from the site and my disk each several times and nothing has worked,

i can hear sound when my mixer knob is all the way to input but thats it.

please help, im seriously regretting this purchase

running win 7 64bit