Don't install dumpchk. windbg is the offical tool to format the minidumps.  

http://msdn.microsoft.com/msdnmag/issues/05/07/Debugging/

Debugging Tools from Microsoft
1) Create folder c:\symbols
2) Download and install the http://www.microsoft.com/whdc/devtools/debugging/installx86.mspx
3) Locate your latest memory.dmp file- C:\WINDOWS\Minidump\Mini011005-01.dmp or whatever
4) open a CMD prompt and cd\program files\debugging tools for windows\
5) type the following stuff:

Code:
c:\program files\debugging tools>kd -z C:\WINDOWS\Minidump\Mini011005-01.dmp
kd> .logopen c:\debuglog.txt
kd> .sympath srv*c:\symbols*http://msdl.microsoft.com/download/symbols
kd> .reload;!analyze -v;r;!thread;lmnt;.logclose;q

You now have a debuglog.txt in c:\, open it in notepad and post to this thread.