Pro Tools 9 & Midi Controllers Stop Working In Middle Of Session

[djloekee27]

I have a problem with Pro Tools 9 and my midi controllers, Akai MPK Mini & Access Virus KB.

When I first open a project in Pro Tools now, I am able to use Structure Free, my MPK Mini and my drum samples to record a drum track as an audio file. But as soon as I create a new track to add another drum (I always record my drums as separate separate tracks and not one track), then my MPK mini doesn't work as a midi controller anymore, Structure Free won't respond when I use my MPK's drum pads. Restarting Pro Tools is the only way I can use my MPK again.

I thought that it was a Structure bug so I tried a 3rd party plugin (Vst to RTAS wrapped) for my drums for a new and separate project. But the exact same problem happens, it lets me record one audio track using my MPK but it quits working once I open a new track to record.

I tried switching the midi options to my Virus KB just to ensure that it wasn't a bad USB cable but my Virus KB also isn't able to play Structure Free or a 3rd party plugin as a midi controller either. I have used my Virus KB before as a midi controller for a piano plugin so I know that my midi cables that are connected to my Mbox 3 Pro are good.

Can anybody help me please?

Edit: The only way to get my MPK Mini to work again in Pro Tools is to restart Windows 7.

[djloekee27]

Samsung Sens R590 (NT-590-PS75S) (Korean Market Only Version)
Intel core i7 620m 2.66ghz
Nvidia Geforce GT 330 1gb gddr3
4gb (2 x 2gb) DDR3 ram
Seagate 500gb 7200rpm sata2 3.0gb/sec hard drive
Windows 7 Ultimate 64-bit
External Firewire Case with Seagate sata2 3.0gb/sec 2.0TB hard drive
SIIG IEEE 1394 ExpressCard 2
Mbox Pro 3
Pro Tools 9.0.6

Sandra Report
SiSoftware Sandra

ID
Host Name : LoeKee-Laptop
Workgroup : LOEKEE

Computer
Model : Samsung R580/R590
Serial Number : ZT8R93B*******
Chassis : Samsung Laptop
Mainboard : Samsung R580/R590
Serial Number : 123490E*******
BIOS : Phoenix (OEM) 11JB.M044.20100622.hkk 06/22/2010
Total Memory : 3.87GB DDR3 SO-DIMM

Processors
Processor : Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz (2C 4T 2.8GHz/3.33GHz, 2x 256kB L2, 4MB L3)

Chipset
Memory Controller : Samsung Core (Arrandale) Mobile DRAM Controller 2x 2.4GHz (4.79GHz), 2x 2GB DDR3 SO-DIMM 1GHz 128-bit

Memory Module(s)
Memory Module : Samsung M471B5673FH0-CF8 2GB DDR3 SO-DIMM PC3-8500S DDR3-1066 (7-7-7-20 4-27-8-4)
Memory Module : Samsung M471B5673FH0-CF8 2GB DDR3 SO-DIMM PC3-8500S DDR3-1066 (7-7-7-20 4-27-8-4)

Video System
Monitor/Panel : Samsung Generic PnP Monitor (1600x1200, LTN156AT05000, 15.3")
Video Adapter : NVIDIA GeForce GT 330M (6CU 32SP SM4.1 1.26GHz, 1GB DDR3 1.58GHz 128-bit, PCIe 2.00 x16)

Graphics Processor
OpenCL GP Processor : NVIDIA GeForce GT 330M (48SP 6C 1.26GHz, 1GB DDR3 1.58GHz 128-bit)
Compute Shader Processor : NVIDIA GeForce GT 330M (32SP 6C 1.26GHz, 1GB DDR3 1.58GHz 128-bit)

Storage Devices
Seagate ST9500420AS (500.1GB, SATA300, 2.5", 7200rpm, 16MB Cache) : 466GB (C:) (D:)
Seagate ST2000DL 003-9VT166 (2TB, FireWire/1394) : 2TB (F:)
Seagate ST1500LM003-9YH148 (1.5TB, USB2/SATA300, 3.5", 5400rpm, 16MB Cache) : 1TB (G:)
TSSTcorpCDDVDW TS-L633C (ATAPI, DVD+-RW, CD-RW, 2MB Cache) : N/A (E:)
WRKH A78XMV85 (SCSI, BD-R, DVD+-R-DL, CD-R) : N/A (H:)

Logical Storage Devices
System Reserved : 100MB (NTFS)
Firewire 2 (F:) : 2TB (NTFS) @ Seagate ST2000DL 003-9VT166 (2TB, FireWire/1394)
External 1 (G:) : 1TB (NTFS) @ Seagate ST1500LM003-9YH148 (1.5TB, USB2/SATA300, 3.5", 5400rpm, 16MB Cache)
Hard Disk (C:) : 200GB (NTFS) @ Seagate ST9500420AS (500.1GB, SATA300, 2.5", 7200rpm, 16MB Cache)
Local Disk (D:) : 266GB (NTFS) @ Seagate ST9500420AS (500.1GB, SATA300, 2.5", 7200rpm, 16MB Cache)
Optical Drive (E:) : N/A @ TSSTcorpCDDVDW TS-L633C (ATAPI, DVD+-RW, CD-RW, 2MB Cache)
Optical Drive (H:) : N/A @ WRKH A78XMV85 (SCSI, BD-R, DVD+-R-DL, CD-R)

Peripherals
LPC Hub Controller 1 : Samsung HM55 LPC Interface Controller
LPC Legacy Controller 1 : SMSC FDC37M81x
Audio Device : Samsung P55/PM55/3400 High Definition Audio
Audio Codec : Realtek Semi High Definition Audio
Audio Device : Samsung High Definition Audio Controller
Audio Codec : nVidia 000A
Audio Codec : nVidia 000A
Audio Codec : nVidia 000A
Disk Controller : Samsung P55/PM55/3400 4 port SATA AHCI Controller
USB Controller 1 : Samsung P55/PM55/3400 USB2 Enhanced Host Controller
USB Controller 2 : Samsung P55/PM55/3400 USB2 Enhanced Host Controller
FireWire/1394 Controller 1 : Avlab Technology XIO2200(A) IEEE-1394a-2000 Controller (PHY/Link)
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 : Bluetooth Device (Personal Area Network) (Ethernet)
Network Adapter : Marvell Yukon 88E8059 Family PCI-E Gigabit Ethernet Controller (Ethernet)
Network Adapter : Anchorfree HSS VPN Adapter (Ethernet)
Wireless Adapter : Realtek RTL8192E Wireless LAN 802.11n PCI-E NIC (802.11g (ERP), AES-CCMP, 54Mbps)

Power Management
Battery No 1 : SAMSUNG Electronics 48.84Wh/3.90Ah

Operating System
Windows System : Microsoft Windows 7 Ultimate 6.01.7601 (Service Pack 1)
Platform Compliance : x64

Windows Experience Index
Current System : 5.9

I bought my Firewire/eSATA external case in Korea back when the Avid website said that Firewire hard drives should be used with Pro Tools 9 and not USB hard drives. The Avid website changed it to USB hard drives and not Firewire hard drives when Pro Tools 10 was released.