Paul Kleeberg - 2008-06-16

On my MacOSX 10.5.2 Server, I have been noticing process freezes and when I look at top I see that whenever processes were becoming unresponsive the number of "stuck" processes in top would climb from one or 2 to 30 and then after a minute or so, drop down again.  I can find no documentation on "stuck" process in top nor can I see any way to use top do identify them.  Can anyone help?