Iain, I can't help you regarding the file error, sorry, but just for anyone thinking of going for SP3 on XP Home, ours came up in Windows Update yesterday, so we went for it, and all seems to be ok. Still haven't seen the new SP1 for Vista yet, so I'm waiting until it instructs me to install it. Jackie Email: cairnsplace@xxxxxxx Skype Name: Cairnsplace ----- Original Message ----- From: Iain Lackie To: access UK > Sent: Monday, May 12, 2008 11:02 PM Subject: [access-uk] Installing SP3 Hi I am trying to install SP3 but am getting a copy error on a file called signup.mar. What is this and is there any way I can either get rid of the error or bypass copying the file? Iain