First of all, it sounds like perhaps you've installed the driver twice.
After installing (updating) new driver
Installing UC on top of itself can cause problems. You must do a complete un-install of UC drivers and before installing new ones. Also UC drivers are port specific. You must always plug your Audiobox into the SAME USB 2.0 that you originally installed it to.
But it could be any number of things. Have you optimized your pc for audio production? Have you disabled wi-fi? Are you plugged into a USB2 or USB3 port? Did you install the drivers from the included disc? Or did you download and use the latest drivers from this site? That being said we can help you better now and in the future with a bit more info......if you will post your system specs in your signature, (see my sig), we will be better able to troubleshoot your problems. Without knowing what type of pc you're running, what OS you're using, what DAW etc....we often can't recommend a "simple fix"
If you have not already done so please READ THE MANUAL!