Crash When Trying to Establish USB Modem Connection

Hi, I have a problem with a 3G USB "dongle" type modem (a Huawei E173) - Windows tries to establish a connection but then computer black screens and reboots and on startup says it has recovered from a BlueScreen. I have tried setting up a manual dial up networking connection to bypass the supplied connection manager software but with same result. The shop will not take the product back as they are satisfied it works (by testing it on one of their laptops) and think it is my laptop. The support line for the product are no help.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 2057
Additional information about the problem:
BCCode: a
BCP1: 00000000000003F8
BCP2: 0000000000000002
BCP3: 0000000000000000
BCP4: FFFFF80002CC9900
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1
Files that help describe the problem:
C:\Windows\Minidump\061811-29390-01.dmp
C:\Users\tobz\AppData\Local\Temp\WER-53055-0.sysdata.xml
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C:\Windows\system32\en-US\erofflps.txt

I've attached files as per the sticky.

Windows 7 Home Premium 64 bit
Original OS on system
OEM version

Hardware is just over a year old
OS has not been reinstalled

Attachment 160407

Interested to know if there is any way I can resolve this myself. Many thanks.

Your ATI display driver was the cause of most BSODs, Connectify is to be blamed for the others
Download and install the latest ATI Driver
Remove any AVG software and use MSE
Remove Connectify

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
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VIDEO_TDR_FAILURE (116)
Attempt to reset the display driver and recover from timeout failed.
Arguments:
Arg1: fffffa8009f634e0, Optional pointer to internal TDR recovery context (TDR_RECOVERY_CONTEXT).
Arg2: fffff88004423f68, The pointer into responsible device driver module (e.g. owner tag).
Arg3: 0000000000000000, Optional error code (NTSTATUS) of the last failed operation.
Arg4: 000000000000000d, Optional internal context dependent data.

Debugging Details:
------------------


FAULTING_IP: 
atikmdag+12f68
fffff880`04423f68 48895c2408      mov     qword ptr [rsp+8],rbx

DEFAULT_BUCKET_ID:  GRAPHICS_DRIVER_TDR_FAULT

CUSTOMER_CRASH_COUNT:  1

BUGCHECK_STR:  0x116

PROCESS_NAME:  System

CURRENT_IRQL:  0

STACK_TEXT:  
fffff880`01d60a68 fffff880`04aa3ef8 : 00000000`00000116 fffffa80`09f634e0 fffff880`04423f68 00000000`00000000 : nt!KeBugCheckEx
fffff880`01d60a70 fffff880`04aa3c7f : fffff880`04423f68 fffffa80`09f634e0 00000000`00000000 fffffa80`07ac4410 : dxgkrnl!TdrBugcheckOnTimeout+0xec
fffff880`01d60ab0 fffff880`04b4af07 : fffffa80`09f634e0 00000000`00000000 00000000`00000000 fffffa80`07ac4410 : dxgkrnl!TdrIsRecoveryRequired+0x21f
fffff880`01d60ae0 fffff880`04b74bd4 : fffffa80`00000000 00000000`00577fd1 00000000`00000000 00000000`00000000 : dxgmms1!VidSchiReportHwHang+0x40b
fffff880`01d60bc0 fffff880`04b462d5 : fffffa80`07ac4410 fffffa80`00000000 00000000`00577fd1 00000000`00000000 : dxgmms1!VidSchiCheckHwProgress+0xd0
fffff880`01d60bf0 fffff880`04b72e7a : 00000000`00000000 fffffa80`05966970 00000000`00000080 fffffa80`07ac4410 : dxgmms1!VidSchiScheduleCommandToRun+0x1e9
fffff880`01d60d00 fffff800`02d26a86 : 00000000`fffffc32 fffffa80`07bd7b60 fffffa80`05398b30 fffffa80`07bd7b60 : dxgmms1!VidSchiWorkerThread+0xba
fffff880`01d60d40 fffff800`02a5fb06 : fffff880`009e9180 fffffa80`07bd7b60 fffff880`009f40c0 39003100`36003500 : nt!PspSystemThreadStartup+0x5a
fffff880`01d60d80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KxStartSystemThread+0x16


STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP: 
atikmdag+12f68
fffff880`04423f68 48895c2408      mov     qword ptr [rsp+8],rbx

SYMBOL_NAME:  atikmdag+12f68

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: atikmdag

IMAGE_NAME:  atikmdag.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4b0447a4

FAILURE_BUCKET_ID:  X64_0x116_IMAGE_atikmdag.sys

BUCKET_ID:  X64_0x116_IMAGE_atikmdag.sys

Followup: MachineOwner
---------

Code:

BugCheck A, {3f8, 2, 0, fffff80002cc9900}

Unable to load image \SystemRoot\system32\DRIVERS\connctfy.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for connctfy.sys
*** ERROR: Module load completed but symbols could not be loaded for connctfy.sys
Probably caused by : connctfy.sys ( connctfy+39bc )

Thanks so much...after removing Connectify, the USB modem connected without the laptop crashing. I have also followed your other advice. Thanks again.