recently after some updates to Windows XP SP2, I found out that solidworks 2005 SP0.0 refuses to load - the message comes from the operating system a while after the start-up logo appears, claiming: sldwrks.exe was unable to load, we are sorry for the inconvenience ... bla,bla,bla something in a dll solidworks using with allot of hexadecimal stuff I don't understand. so I uninstalled it, and reinstalled it - but in vain. afterwards, I uninstalled it and installed the old SW 2004 and it worked ok - so at the bottom line the question is - what am I missing? what does windows XP SP2 likes in 2004 that it doesn't like in 2005? any explanation or sharing of similar experience and insights will be highly appreciated, Gil Alsberg