Ubuntu and Peachtree Audio DAC

Hi, i am new to the DAC and i am using the peachtree DAC ITx. It sounds great. the problem i am having is it works for a couple of days and then it just stops working. I think it is more of a ubuntu thing than the DAC. Any one have any suggestions to fix the issue with Ubuntu?
Is it ubuntu or a disto, like Mint, that is using ubuntu as a base?  I have doubts that it's the o/s itself, but the desktop apps might be the issue.