startup tab

could someone please tell me which of these items i can safely uncheck in my msconfig startup tab:

i'm on an e510 running the usual windows xp mce. 

any advice would be appreciated.

here's what's on my start up tab:

ehtray

jusched

stsystra

atiptaxx

DMXLauncher

RealPlay

qttask

mimboot

mm_tray

isuspm

issch

DLACTRLW

MediaDetect

MotiveSB

ybrwicon

igfxtray

hkcmd

igfxpers

MSKDetect

CAVTray

CAVRID

yop

DSAgnt

1

msmsgs

Digital Line Detect

Microsoft Office

SBC Self Support Tool