Fast Track Duo not playing sound

I recently got a Fast Track Duo, and have been using it with Pro Tools Express. Frequently, when the computer display has turned off after I've been inactive for more than 10 minutes, the Fast Track with no longer be able to play sound, and I'd have to restart the system. Recently, it's gotten worse, and now it won't play sound at all, right from start-up.



I run it on Windows 7 sp 1, and the Fast Track is set for both my system Recording device and Playback device, so I should be able to hear system sounds through it as well. I've tried plugging earphones into the Fast Track, and there's no sound there, either.



Anyway, here's the Sandra report on my system:



SiSoftware Sandra



ID

Host Name : -----

Workgroup : -----



Computer

Model : MSI MS-7914

Serial Number : To be fille***********

Chassis : MSI Desktop

Mainboard : MSI Z97 XPOWER AC (MS-7914)

Serial Number : To be fille***********

BIOS : AMI (OEM) V1.0 04/22/2014

Intel vPro : 9.01.00.1120

Total Memory : 7.9GB DIMM DDR3



Processors

Processor : Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz (4C 3.6GHz, 3.6GHz IMC, 4x 256kB L2, 6MB L3)

Socket/Slot : FC LGA1150



Chipset

Memory Controller : MSI Core (Haswell) DRAM Controller 100MHz, 2x 4GB DIMM DDR3 1.6GHz 128-bit, Integrated Graphics



Memory Module(s)

Memory Module : Kingston KHX1600C10D38G 4GB DIMM DDR3 PC3-12800U DDR3-1600 (10-10-10-30 5-39-12-6)

Memory Module : Kingston KHX1600C10D38G 4GB DIMM DDR3 PC3-12800U DDR3-1600 (10-10-10-30 5-39-12-6)



Video System

Monitor/Panel : LG E2350

(1920x1080, 23.1")

Monitor/Panel : Samsung S22C300

(1920x1080, 21.5")

Video Adapter : Intel(R) HD Graphics 4600 (20CU 160SP SM5.0 600MHz/1.15GHz, 64MB DDR3 1.6GHz 128-bit, Integrated Graphics)

Video Adapter : Intel(R) HD Graphics 4600 (20CU 160SP SM5.0 600MHz/1.15GHz, 64MB DDR3 1.6GHz 128-bit, Integrated Graphics)



Graphics Processor

OpenCL GP Processor : Intel(R) HD Graphics 4600 (160SP 20C 600MHz/1.15GHz, 1.6GB DDR3 1.6GHz 128-bit, Integrated Graphics)

Compute Shader Processor : Intel(R) HD Graphics 4600 (160SP 20C 600MHz/1.15GHz, 64MB DDR3 1.6GHz 128-bit, Integrated Graphics)



Storage Devices

WDC WD10EZEX-22BN5A0 (1TB, SATA600, 3.5", 7200rpm) : 932GB (E:)

Samsung SSD 840 PRO Series (128GB, SATA600, SSD) : 119GB (C:)

HL-DT-ST BD-RE WH16NS40 (SATA150, BD-RE, DVD+-RW, CD-RW, 4MB Cache) : N/A (D:)



Logical Storage Devices

Storage (E:) : 931GB (NTFS) @ WDC WD10EZEX-22BN5A0 (1TB, SATA600, 3.5", 7200rpm)

Hard Disk (C:) : 119GB (NTFS) @ Samsung SSD 840 PRO Series (128GB, SATA600, SSD)

Optical Drive (D:) : N/A @ HL-DT-ST BD-RE WH16NS40 (SATA150, BD-RE, DVD+-RW, CD-RW, 4MB Cache)



Peripherals

LPC Hub Controller 1 : MSI 9 Series Chipset Family Z97 LPC Controller

Audio Device : MSI Core (Haswell) HD Audio Controller

Audio Codec : Intel 2807

Audio Device : MSI 9 Series Chipset Family HD Audio Controller

Audio Codec : Realtek Semi 0900

Disk Controller : MSI 9 Series Chipset Family SATA Controller [AHCI Mode]

Disk Controller : MSI Asmedia 106x SATA Controller

Disk Controller : MSI Asmedia 106x SATA Controller

USB Controller 1 : MSI 9 Series Chipset Family USB xHCI Controller

USB Controller 2 : MSI 9 Series Chipset Family USB EHCI Controller #2

USB Controller 3 : MSI 9 Series Chipset Family USB EHCI Controller #1

USB Controller 4 : MSI ASM1042A USB 3.0 Host Controller

SMBus/i2c Controller 1 : Intel ICH SMBus



Printers and Faxes

Printer : Microsoft XPS Document Writer (600x600, Colour)

Fax : Microsoft Shared Fax Driver (200x200)



Network Services

Network Adapter : Intel(R) Ethernet Connection (2) I218-V (Ethernet)

Wireless Adapter : Intel(R) Dual Band Wireless-AC 7260 (802.11g (ERP), WEP n-bit, 18Mbps)



Operating System

Windows System : Microsoft Windows 7 Home 6.01.7601 (Service Pack 1)

Platform Compliance : x64



Windows Experience Index

Current System : 6.7



Also, I'm using:

Pro Tools Express

Fast Track Duo 1.0.4 (Firmware: 1.0.2)



Can anyone help? Thanks!