C-ISAM not "really" closing files.

[Metro T. Sauper]

I am having a problem with C-ISAM on my 3B2.  I keep getting "too many open
files" errors when opening normal (open(),fopen()) files.  I always close
my C-ISAM files when they are not necessary.  I have noticed that C-ISAM
opens do not have this problem.  I am thinking that when I issue an isclose(),
C-ISAM does not really close the file.  Does anyone know if this is the
case.  Is there any way to force a REAL close on the file?

Please respond if you are familiar with this problem.  I am stopped dead with
this problem.

Thanks.

Metro T. Sauper, Jr.
ihnp4!ll1!bpa!asi!metro