Windows 7 - USB Midi Is Messin' With My Head!!!

:I'm having problems getting my Usb MIDI to work in my music software. It used to work, but one day it just magically stopped working. I was about to make a dumb mistake and buy a new $60 Usb MIDI cable, but then I checked in device manager and I noticed that Windows WAS recognizing the Usb MIDI cable. It even said "This device is working properly." The MIDI Input light on the cable blinks until I open the software. Then it stops. I was thinking it may need a driver update? If so, what kind? What do I do? Things you need to know:

Computer: Windows 7.
Music Software: Mixcraft Pro Studio 5
Device Manager: USB Midi
Manufacturer: (Generic USB Audio)
Device Status: This device is working properly.
Driver Provider: Microsoft Driver
Date: 7/13/2009
Driver Version: 6.1.7600.16385
Digital Signer: Microsoft Windows

Please help! Thanks! It's frustrating because it used to work but now it doesn't! I greatly appreciate it!