Another Gaussian error message...

Hi --
 I've received yet another error...  My original error was due to the
 scratch read/write file getting too large and I tried to fix this
 following the suggestions on the Gaussian home page.
 This is my route heading:
 # HF/3-21G SCF=Tight Opt Freq Test
 No title specified
 0   1
 And this is the error message:
 rust Radius=3.00D-01 FncErr=1.00D-07 GrdErr=1.00D-07
  Number of steps in this run= 840 maximum allowed number of steps= 840.
  Optmz4 allocation failure:  iend,mxcore=   9823595   6291456
  Error termination via Lnk1e in C:\G98W\l103.exe.
  Job cpu time:  0 days  0 hours  0 minutes  4.0 seconds.
  File lengths (MBytes):  RWF=   39 Int=    0 D2E=    0 Chk=    1 Scr=
 Has anyone encountered this before and know what it means?
 Connie Chang
 cc236 $#at#$