No desktop Icons

I recently installed Avast Internet Security v5 on windows xp sp2 32 bit, but very very disappointed when the PC restarts and logon again.After displaying Logon Welcome Screen of Windows XP, desktop appear without icons. I wait even for about five minutes for desktop icon loading but nothing happened. I run Windows Task Manager by pressing Ctrl+Alt+Del keys and check that explorer is running in the Task Manager Process Tab, I tried to run explorer manually but get no +ve outcome.
However the windows is properly loaded in Safe mode with desktop icons. When I uninstall the Avast in safe mode and reboot the PC in Normal mode, all is well and the Windows loaded properly with desktop icons.

Kindly suggest me.

in the avast settings: check to load avast after other system applications.
sorry, using german language version, don’t know the proper english menu-item.
maybe someone can translate…
asyn