Memory Issue

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I have 256MB of RAM in my system running RH6.2 on a PII 233Mhz MMX.
here is what free is reporting:

              total       used       free     shared    buffers    
cached
Mem:        257720     218468      39252      52564     138004     
34356
- -/+ buffers/cache:      46108     211612
Swap:       130748       4448     126300 

Now it seems to bounce back and forth between low usage, like 40-60MB
used to 200+ used. It' almost like windows in this issue:
I attached a ps -A to a txt file (was to spammy to paste). I am
running KDE ver 1.1.2 and even with that, of course being displayed
on an Xserver on another machine, I still get really good memory
useage cept when I get this moments when it's all taken up. I'm
stumped.

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  PID TTY          TIME CMD=0A=
    1 ?        00:00:04 init=0A=
    2 ?        00:00:01 kflushd=0A=
    3 ?        00:00:04 kupdate=0A=
    4 ?        00:00:00 kpiod=0A=
    5 ?        00:00:01 kswapd=0A=
    6 ?        00:00:00 mdrecoveryd=0A=
  358 ?        00:00:00 portmap=0A=
  372 ?        00:00:00 apmd=0A=
  399 ?        00:00:00 automount=0A=
  452 ?        00:00:00 mcserv=0A=
  466 ?        00:00:01 syslogd=0A=
  475 ?        00:00:00 klogd=0A=
  489 ?        00:00:00 xntpd=0A=
  503 ?        00:00:00 atd=0A=
  518 ?        00:00:00 crond=0A=
  532 ?        00:00:00 inetd=0A=
  546 ?        00:00:00 named=0A=
  556 ?        00:00:01 sshd=0A=
  571 ?        00:00:00 lpd=0A=
  586 ?        00:00:00 dhcpd=0A=
  630 ?        00:00:00 sendmail=0A=
  645 ?        00:00:00 gpm=0A=
  716 ?        00:00:00 xfs=0A=
  723 ?        00:00:00 httpd=0A=
  805 ?        00:00:00 netmush=0A=
  825 ?        00:00:00 nessusd=0A=
  829 tty1     00:00:00 mingetty=0A=
  830 tty2     00:00:00 mingetty=0A=
  831 tty3     00:00:00 mingetty=0A=
  832 tty4     00:00:00 mingetty=0A=
  833 tty5     00:00:00 mingetty=0A=
  834 tty6     00:00:00 mingetty=0A=
  985 ?        00:00:00 kbgndwm=0A=
  992 ?        00:00:01 kfm=0A=
  993 ?        00:00:00 krootwm=0A=
 1060 ttyS2    00:00:00 pppd=0A=
 1101 ?        00:00:00 dynipclient=0A=
 1160 ?        00:00:00 smbd=0A=
 1169 ?        00:00:00 nmbd=0A=
 1172 ?        00:00:00 nmbd=0A=
 1417 ?        00:00:03 kwm=0A=
 1437 ?        00:00:00 kbgndwm=0A=
 1444 ?        00:00:07 kfm=0A=
 1445 ?        00:00:00 krootwm=0A=
 1446 ?        00:00:05 kpanel=0A=
 1452 ?        00:00:02 konsole=0A=
 1454 pts/3    00:00:00 bash=0A=
 1633 ?        00:00:00 rt=0A=
 1640 ?        00:00:04 pload=0A=
 1641 ?        00:07:22 xosview=0A=
 1645 pts/3    00:00:00 su=0A=
 1647 pts/3    00:00:00 bash=0A=
 1825 ?        00:00:00 httpd=0A=
 1826 ?        00:00:00 httpd=0A=
 1827 ?        00:00:00 httpd=0A=
 1828 ?        00:00:00 httpd=0A=
 1829 ?        00:00:00 httpd=0A=
 1830 ?        00:00:00 httpd=0A=
 1831 ?        00:00:00 httpd=0A=
 1832 ?        00:00:00 httpd=0A=
 1908 ?        00:00:02 in.ftpd=0A=
 1920 ?        00:00:00 smbd=0A=
 2040 ?        00:00:01 kvt=0A=
 2041 pts/4    00:00:00 bash=0A=
 2062 pts/4    00:00:00 ps=0A=

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