ProTools 10Hd Mbox 2 pro Windows 7 Buffer HELP !!

i know the -9093 error is common but it never was a problem for me until my new set up. i did almost everything from troubleshooting, optimizing my system turning off turbo in bios re installing drivers and protools, i read alot of others solutions and problems in the forum but no help for me im thinking about going back to a regular mbox 2 if it doesn't work. i have the recommended fire wire TI 1394 express card from startech but still get buffer error. my hard drives are 7200 so thats not the problem. im Desperate for a solution.




ProTools 10 HD & Mbox 2 Pro



OS Name Microsoft Windows 7 Professional
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name Z200
System Manufacturer Hewlett-Packard
System Model HP Z200 Workstation
System Type x64-based PC
Processor Intel(R) Core(TM) i5 CPU 650 @ 3.20GHz, 3333 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date Hewlett-Packard 786H3 v01.12, 11/18/2010
SMBIOS Version 2.6
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.1.7601.17514"
User Name Z200\Valued