🚀 go-pugleaf

While processing my TeX files under VMS Version 5.3 on a 16Mb MicroVAX-II, 
I received the following dreaded message:

   This is TeX, Version 3.0 [PD VMS 3.2/DECUS]
   ...
   ! TeX capacity exceeded, sorry [input stack size=200].
 
   Here is how much oof TeX's memory you used:

     422 strings out of 2326
     4861 string characters out of 28557
     43332 words of memory out of 327146
     2254 multiletter control sequences out of 5000
     20083 words of font info for 76 fonts, out of 50000 for 150
     14 hyphenation exceptions out of 503

     200i,15n,19p,227b,336s stack positions out of 200i,40n,60p,200b,1500s
     ...
     Output written...(53 pages, 73676 bytes)

I have partitioned the input into separate .tex files,
and use \input{foo} and \includeonly{...}, but still get the error
message!

Now what do I do? 
-- 
John J. Cupak, Jr., CCP       Lockheed DECNet: MERVAX::CUPAK
Lockheed Sanders, Inc.        Internet       : cupak@rapnet.sanders.LOCKHEED.COM
144 DW Highway / MER24-1K23   CompuServe     : 72411,3176 
Nashua, NH 03061-0868         Telephone      : (603) 885-5816     FAX: 885-6081