yes, it always runs ok after reboot; however, after using it for an hour or two, inevitably something comes up that causes me to need to restart it; for example, when I am printing a CCD, it will tell me that "an internal error was encountered... unable to print document"..... After that, if I try to click on a PDF document in Imp Items, the whole thing will freeze; once I restart AC, its all back to normal. Of note, I have used both adobe and foxit, to no avail. Moreover, it freezes in other scenarios as well. This happens several times a day. I'm just wondering if this is all due to needing more memory, based on what the resource monitor above is saying. I purchased a 4G memory slot last night, but haven't taken it out of its packaging yet. I just don't think that restarting AC 4-5 times a day is normal......