pro tools is recording early?

[Applebase]

I am running windows 7 64 bit with a 003 and pro tools 8.0.4.
everything is running awesome apart from when i record something it sounds fine (in sync) but when i play back everything has recorded early?(around 30 milliseconds at 512 H\W buffer size)
it goes further out of sync the larger i make my play back engine H\W buffer size...
i have played with low latency monitoring, deleted prefs...
any ideas?

[Applebase]

SiSoftware Sandra


Processor
Model : Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz
Speed : 1.60GHz
Cores per Processor : 4 Unit(s)
Threads per Core : 2 Unit(s)
Type : Quad-Core
Internal Data Cache : 2x 32kB, Synchronous, Write-Thru, 8-way, 64 byte line size, 2 threads sharing
L2 On-board Cache : 2x 256kB, Synchronous, ATC, 8-way, 64 byte line size, 2 threads sharing
L3 On-board Cache : 6MB, Synchronous, ATC, 12-way, 64 byte line size, 16 threads sharing

System
System : Dell Inc. Studio 1558
Mainboard : Dell Inc. 0874P6
Bus(es) : ISA PCI PCIe USB FireWire/1394
Multi-Processor (MP) Support : 1 Processor(s)
Multi-Processor Advanced PIC (APIC) : No
System BIOS : AT/AT COMPATIBLE DELL - 6040000
Total Memory : 5.93GB

Chipset 1
Model : Dell ??? (D132)
Front Side Bus Speed : 1x 133MHz (133MHz)

Video System
Monitor/Panel : Generic PnP Monitor
Adapter : ATI Mobility Radeon HD 5470
Imaging Device : Integrated Webcam

Physical Storage Devices
Hitachi HTS725050A9A364 500GB (SATA300, NCQ, 15MB Cache) : 465.76GB (C:)
Maxtor Basics Desktop 500GB (USB) : 465.76GB (E:)
TSSTcorp DVD+-RW TS-T633C (SATA150, 24x CD-R, 24x CD-W, 3x DVD-R, 3x DVD-W, 2MB Cache) : N/A (D:)

Logical Storage Devices
RECOVERY : 14.65GB (8.98GB, 61% Free Space) (NTFS)
Max (E:) : 465.76GB (368.09GB, 79% Free Space) (NTFS) @ Maxtor Basics Desktop 500GB (USB)
OS (C:) : 451.07GB (401.84GB, 89% Free Space) (NTFS) @ Hitachi HTS725050A9A364 500GB (SATA300, NCQ, 15MB Cache)
CD-ROM/DVD (D:) : N/A @ TSSTcorp DVD+-RW TS-T633C (SATA150, 24x CD-R, 24x CD-W, 3x DVD-R, 3x DVD-W, 2MB Cache)

Peripherals
USB Controller/Hub : Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34
USB Controller/Hub : Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B3C
USB Controller/Hub : USB Root Hub
USB Controller/Hub : USB Root Hub
USB Controller/Hub : USB Composite Device
USB Controller/Hub : USB Mass Storage Device
USB Controller/Hub : Generic USB Hub
USB Controller/Hub : Generic USB Hub
FireWire/1394 Controller/Hub : Ricoh 1394 OHCI Compliant Host Controller
Keyboard : Standard PS/2 Keyboard
Mouse : Dell Touchpad
Mouse : HID-compliant mouse
Human Interface : USB Input Device

Printers and Faxes
Model : Microsoft XPS Document Writer
Model : Fax

Power Management
Mains (AC) Line Status : On-Line
Battery No 1 : 100%

Operating System(s)
Windows System : Microsoft Windows Vista Home Media Center 6.01.7600
Platform Compliance : Win64 x64

Windows Experience Index
Current System : 4.9

Network Services
Adapter : Realtek PCIe GBE Family Controller
Adapter : DW1520 Wireless-N WLAN Half-Mini Card

[wertt]

do you have plugins on your master bus? this happened to a friend of mine because he was recording with a waves l3 on the master bus, causing some pretty serious latency. in low latency mode the track he was recording wasn't passed through the master, so he wouldn't notice until he played it back. i spent forever trying to sort it out with him over the phone without any success but figured it out as soon as we looked at the session.

[Applebase]

thanks for that.
I dont have any plugins running apart from a click track to check sync against.
have tried without click track too, just 2 tracks of audio...