problems with mixvibes; after 2 minutes my computer doesn't

Hallo,
I have a lot of troubles with mixvibes and i'am thinking of returning it to the store. I have installed all new drivers and still it doesnt work. Mixvibes works for 5 minutes and then it just shuts down everything gets stuck and i have to reinstall the U46 because my computer doesn't recognizes the card anymore. This is very frustrating hopefully there is somebody who can help me
I have a lot of troubles with mixvibes and i'am thinking of returning it to the store. I have installed all new drivers and still it doesnt work. Mixvibes works for 5 minutes and then it just shuts down everything gets stuck and i have to reinstall the U46 because my computer doesn't recognizes the card anymore. This is very frustrating hopefully there is somebody who can help me