MrBabis

i believe your saying that when you right click on something explorer gives you an error and re-starts or needs to be re-started.

if thats the case grindler posted a registry fix for this here:

http://www.bleepingcomputer.com/forums/topict2849.html

this is probably caused by a faulty install of the right click "check for virus" feature screwing up the registry BUT seeing two cases of this in two days really makes me paranoid. it might be prudent to do a couple of on line virus scans. probably nothing to worry about as a bad install can cause this... but coincidence.....i dont like that!