courier-imap and kmemsize

[net64]

Having two problems on my VPS.

Keep getting messages -
The IMAP/POP3 Server (Courier-IMAP) service on host admin.xxxxx.com has been released from monitoring on Apr 23, 2007 06:42 AM.

This one is new -
The xinetd service on host admin.xxxxx.com is down. The problem was discovered on Apr 23, 2007 06:37 AM.

My load average has been up over 2.00 and now the kmemsize is as follows...

1522: kmemsize 7911504 7928782 19192791 21112070 25
lockedpages 0 0 937 937 0
privvmpages 44546 44555 524288 954459 0
shmpages 5923 5923 86769 86769 0
dummy 0 0 0 0 0
numproc 57 57 512 512 0
physpages 22544 22545 0 2147483647 0
vmguarpages 0 0 65536 2147483647 0
oomguarpages 22544 22545 65536 2147483647 0
numtcpsock 30 30 256 256 0
numflock 3 3 748 822 0
numpty 1 1 20 20 0
numsiginfo 0 1 1024 1024 0
tcpsndbuf 8912 8912 4480669 6397597 0
tcprcvbuf 0 692 4480669 6397597 0
othersockbuf 19616 19616 2240334 4157262 0
dgramrcvbuf 0 0 2240334 2240334 0
numothersock 20 20 256 256 0
dcachesize 474124 476994 4718593 4718593 0
numfile 1165 1166 12288 12288 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 686 686 1000 1000 0


I know that this is not from my clients websites, so what can be done. I believe there is a problem on the VPS with someone else using my resources??

Any ideas?