Problem with SSE install...

I'm trying to install a new 9.0 client, and the SSE installation keeps failing. I've tried running the DotNetSSESetup separately, and also tried using the copy that comes with Visual Studio, but it always ends in error. I haven't had this problem on other clients, so I'm not sure what to do. I considered uninstalling .net 2.0 and reinstalling it, but of course Windows doesn't want me to do that, since other things are installed that use it. Here's the errors I get in the DotNetSSESetup log:

1 1 11:25:30 I Installation of .NET Framework is not required.
2 1 11:25:30 I AllocateAndInitializeSid.
3 1 11:25:30 I AllocateAndInitializeSid Successful.
4 1 11:25:30 I Look up Local Sid Account
5 1 11:25:30 I Second Check: INSUFFICENT BUFFER: Look up Local Sid Account
6 1 11:25:30 I Look up Local Sid Account II
7 1 11:25:30 I Look up Local Sid Account II name = NT AUTHORITY\SYSTEM
8 1 11:25:30 I AllocateAndInitializeSid szLocalSystemAccount = NT AUTHORITY\SYSTEM
9 1 11:25:30 I Local Sid Account szSQLAccount= NT AUTHORITY\SYSTEM; szAgentAccount=NT AUTHORITY\SYSTEM
10 2 11:25:30 I Installing SQL Server 2005 Enterprise Edition with command: ".\SQLEXPR.EXE" /qb ADDLOCAL="SQL_Engine,SQL_Data_Files,Client_Components" INSTANCENAME="JDESSELocal" SQLACCOUNT="NT AUTHORITY\SYSTEM" AGTACCOUNT="NT AUTHORITY\SYSTEM" SECURITYMODE=SQL SAPWD="******" DISABLENETWORKPROTOCOLS=0
11 1 11:28:24 I Return value from ExecCmd = 1603
12 1 11:28:24 E : Error in the EXECCMD
13 1 11:28:24 I SSE Setup has failed. If the problem persists, please contact Product Support.
14 1 11:28:24 I Return value from InstallSSE() = 0

Any ideas?

I've had some sporadic problems with it. Do you have MSXML6 SP2 installed? One of the most common causes is this thing. Follow the suggestions here: link to Microsoft KB Article 968749, and see if that helps.

That fixed it, thanks so much!