Tartan Giant,
How much RAM do you have on your computer?
Try running with Norton disabled, see if it still does it. (Also check to see if Norton is running a scheduled scan while you are trying to type.)
How much Free Space do you have left on your Hard Drive?
Then check your Network Connections and check your protocols are setup properly for your LAN.
As for having OLE in your Quick Launch on the Task Bar, Right Click on the Tack Bar, and make sure you do not have a checkmark on Lock The Task Bar. The take the Icon for OLE and Drag & Drop it in the Quick Launch Aera and you are set.
Take Care,
Richard