Thanks for posting. Apologies that your U3014 is not performing as expected.
If you still require assistance and the U3014 is under warranty, you may contact me privately. Be sure to include your personal information (U3014 service tag number and/or 20 digit serial number, name, address, telephone, email) and your computer's service tag number in your message. Thanks.
If there is no warranty, then you should contact our Out of Warranty team to get a quote for a paid service request.