Desktop Audio

I've had this system since mid-September, and from day one when it wakes up from sleep mode there is no sound. If I run any of the troubleshooters while there is no sound, they either lock up or scan in perpetuity with nothing happening. The sound comes back after a reboot (99 time out of 100, sometimes 2 reboots are required). If I run the troubleshooters when the sound is working, no problems are found. I have uninstalled the device, tried updating drivers, rolled back drivers, followed the step-by-step solutions and any other suggestion that I could find and nothing fixes this. Also, I will occasionally get a system message that says that the speakers have been disconnected, followed immediatly by another message saying they have been reconnected, however there is no interruption in sound. I've switched speakers, no luck. The speakers are plugged into the back of the system, and when there is no sound I also have no sound from the front headphone jack. I have not checked with bluetooth to see if that sound also fails.

This desktop system is for work, and several hours were spent setting it up as such before this issue was discovered. It's a brand new system and if I have to ship it back to have it repaired it will be the last HP we purchase.