Wonder if anyone can help me? I have an Acer 5600U all-in-one. If I leave it on for a few days it starts to give me low memory messages, then the screen resolution goes funny and I have to turn the machine off and on a few times to get it to work again. I have Norton running on it and a diary/accounts software programme (which has never caused me a problem on previous computers) I don't have many photos and a few short video clips, nothing that should be too memory hungry. . I have been told there may be a memory leak but can't find a programme that consistently appears to be memory hungry. Is there anyone out there who can walk me through how to fix this? Many thanks for looking.