I am not even sure how to ask this question. I wrote a perl application consisting of 25 modules. There is one 'main' module and 24 sub-modules. Each has their own window. I originally wrote this under Windows 2000. A couple weeks ago, I received a new pc running WinXP. I reinstalled perl 5.8 and the various components I was using previously. Everything seemed to install correctly.

However, when I select a certain sub-routines the system seems to hang.

I stepped though the programs using the debugger and it would hang on statements such as

$mb = $mw->Toplevel(-relief => 'flat', -bd => 2);
my $titleframe = $mb->Frame();
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However, if I step into it and then continue to step into functions, eventually control returns to the next statement in my perl module. What is even more strange is that it only happens to some of the sub-module displays, not all of them.

Now this system was running correctly on Win2000. Is it possible that there are some kind of incompatibilities between perl running on Win2000 and WinXP?

Your help is greatly appreciated. Thank you.

Gerry