acsd is AOL's connectivity service. It is what tries to sign you back on if you get disconnected. You can still do that manually but this program silently monitors and tries to do it for you. Joan In a message dated 8/7/2008 11:35:50 A.M. Eastern Daylight Time, [email protected] writes: I click alt, ctrl, del to access what is running on my puter in the processes tab. Most of the time the culprit is AOL acsd.exe. It will be using between 97 and 100%. I highlight it and click end process . The computer says things might not work right. I close it anyway and I have not had a problem using aol or anything else and things don't freeze very often. On some days, it won't bother my puter functions at all if I leave it there. Fran **************Looking for a car that's sporty, fun and fits in your budget? Read reviews on AOL Autos. (http://autos.aol.com/cars-BMW-128-2008/expert-review?ncid=aolaut00050000000017 )