I've just installed wildfire 4.0 M092 on to my collegue's laptop, which runs Vista Business SP2. With exception of the Render Window (which may or may not be a connected problem - basically it goes through the Render Proceedure, but does not display the finished result!), it works fine when used as an Administrator. When I come to log on as User - which does not have Admin Rights (preferably so) the software loads but then specifies the following: "No write access to C:\windows\system32\ Please choose another startup directory for trail creation." I've tried setting a new directory, i.e. "C:\Users\*name\" which works, but has to be re-applied on every start-up. Does anyone have any firm suggestions to getting around this problem without the need of allowing my collegue Administrator Rights? I have not have this problem with XP Pro, although I understand that Vista has tighter security protocals. Many thanks, Owen.