AMD XP Beta 64 Windbg 6.4.0007.0 error code not found, no breakpoint set

Hi all,

I am trying to debug a user mode printer driver UI dll, in which I had
put

DebugBreak( ) to break at a point…I had set the debug symbols path
correctly…

It breaks at DebugBreak( ), but after that, If I put a breakpoint, it
gives a message saying

Code not found, No break point set…I have the pdb file for the ui dll
in the spool\driver\x64\3 folder along with the dll…

When I use windbg 32 bit for x86-32 bit version of UI dll, it works
fine…

I had searched the user groups for the same, but couldn’t solve this
issue

Any inputs is highly appreciated…

Thanks,

Shiva P