Regarding Memory leaks

I am getting
c:\sourcecode\latest source code\sourcecode\jucelibrary\juce_1_51\juce\src\containers\juce_heapblock.h(217) : {66487} normal block at 0x0B7B9848, 32 bytes long.
Data: < { > BC 96 7B 0B CD CD CD CD CD CD CD CD CD CD CD CD
c:\sourcecode\latest source code\sourcecode\jucelibrary\juce_1_51\juce\src\containers\juce_heapblock.h(217) : {66486} normal block at 0x0B7B97E8, 32 bytes long.
Data: < { > 14 97 7B 0B CD CD CD CD CD CD CD CD CD CD CD CD

memory leaks.
There are many leaks .

what could be the possible problem.
I am using deleteAllChildren in my destructor.

I started a coding standards wiki - might be helpful:
http://www.rawmaterialsoftware.com/wiki/index.php/Coding_Standards

ditto-- in particular, you might be interested in looking at the section “Object lifetime and ownership”, cheers