I've got a windows 7 laptop that BSOD with a Service Exception Error when I connect to a wireless network. It also does it when it's just sitting still doing nothing. I ran bluescreenview and here are the last four BSOD's from today:

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Dump File : 051210-18642-01.dmp
Crash Time : 5/12/2010 8:36:14 AM
Bug Check String : SYSTEM_SERVICE_EXCEPTION
Bug Check Code : 0x0000003b
Parameter 1 : 00000000`c000001d
Parameter 2 : fffff880`00000000
Parameter 3 : fffff880`06fda160
Parameter 4 : 00000000`00000000
Caused By Driver : Ntfs.sys
Caused By Address : Ntfs.sys+7f030
File Description :
Product Name :
Company :
File Version :
Processor : x64
Computer Name :
Full Path : C:\Windows\Minidump\051210-18642-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7600
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Dump File : 051210-16551-01.dmp
Crash Time : 5/12/2010 8:41:04 AM
Bug Check String : SYSTEM_SERVICE_EXCEPTION
Bug Check Code : 0x0000003b
Parameter 1 : 00000000`c000001d
Parameter 2 : fffff880`00000000
Parameter 3 : fffff880`06f40160
Parameter 4 : 00000000`00000000
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+70600
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16539 (win7_gdr.100226-1909)
Processor : x64
Computer Name :
Full Path : C:\Windows\Minidump\051210-16551-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7600
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Dump File : 051210-17269-01.dmp
Crash Time : 5/12/2010 8:45:51 AM
Bug Check String : SYSTEM_SERVICE_EXCEPTION
Bug Check Code : 0x0000003b
Parameter 1 : 00000000`c000001d
Parameter 2 : fffff880`00000000
Parameter 3 : fffff880`07db1160
Parameter 4 : 00000000`00000000
Caused By Driver : Ntfs.sys
Caused By Address : Ntfs.sys+7f030
File Description :
Product Name :
Company :
File Version :
Processor : x64
Computer Name :
Full Path : C:\Windows\Minidump\051210-17269-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7600
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Dump File : 051210-19453-01.dmp
Crash Time : 5/12/2010 5:46:25 PM
Bug Check String : SYSTEM_SERVICE_EXCEPTION
Bug Check Code : 0x0000003b
Parameter 1 : 00000000`c000001d
Parameter 2 : fffff880`00000000
Parameter 3 : fffff880`02625160
Parameter 4 : 00000000`00000000
Caused By Driver : win32k.sys
Caused By Address : win32k.sys+2d4201
File Description :
Product Name :
Company :
File Version :
Processor : x64
Computer Name :
Full Path : C:\Windows\Minidump\051210-19453-01.dmp
Processors Count : 2
Major Version : 15
Minor Version : 7600
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