Vista - PS Bug: The OS handle's position is not what FileStream expected.

Hi All,

I wanted to know the fix to following PS bug:
out-lineoutput : The OS handle's position is not what FileStream expected.
Do not use a handle simultaneously in one FileStream and in Win32 code or
another FileStream. This may cause data loss.

I have a command file(say mybatch.cmd) which in-turn calls a command
file(say RunAll.cmd) where-in I exec PS Script file (say myPSScript.ps1). The
PS script file in-turn need to exec bat files (say RunMe1.bat, RunMe2.bat).

The issue is: When I run them from command prompt it works fine. However,
when I redirect the output of mybatch.cmd file to an output file, the
execution stops abruptly after running the first bat file(RunMe1.bat). The
error output is mentioned above. I am using pushd and popd commands as my
files are located in different places.

Help me out.

Thanks,
Twisha