Hi I'm having the same issues. I (believe) I have all the drivers up to date, but I could be wrong. Here's my info:
System Information
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120830-0333)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: Dell System XPS 15Z
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz (4 CPUs), ~2.7GHz
Memory: 8192MB RAM
Available OS Memory: 8086MB RAM
Page File: 3255MB used, 12914MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode
Display Devices
Card name: Intel(R) HD Graphics Family
Manufacturer: Intel Corporation
Chip type: Intel(R) HD Graphics Family
DAC type: Internal
Device Key: Enum\PCI\VEN_8086&DEV_0126&SUBSYS_04461028&REV_09
Display Memory: 1696 MB
Dedicated Memory: 64 MB
Shared Memory: 1632 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: unknown
Monitor Id: AUO30ED
Native Mode: 1920 x 1080(p) (60.017Hz)
Output Type: Internal
Driver Name: igdumd64.dll,igd10umd64.dll,igd10umd64.dll,igdumdx32,igd10umd32,igd10umd32
Driver File Version: 8.15.0010.2253 (English)
Driver Version: 8.15.10.2253
DDI Version: 10.1
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 11/29/2010 05:23:16, 7428608 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
Device Identifier: {D7B78E66-4266-11CF-2171-4B24B4C2C435}
Vendor ID: 0x8086
Device ID: 0x0126
SubSys ID: 0x04461028
Revision ID: 0x0009
Driver Strong Name: oem17.inf:Intel.Mfg.NTamd64:iSNBM0:8.15.10.2253:pci\ven_8086&dev_0126&subsys_04461028
Rank Of Driver: 00E60001
Thanks for the help.