i have been having a problem with illustrator. im working on a very basic ai. file. 2 layers and only black and white lines. when i try to save i get a message "An unknown error has occurred", when i close that box i get another message "Can't finish previewing. There isn't enough memory. ID = -108" , when i close that box i get the windows message "adobe illustrator has encountered a problem and needs to close....etc". im running a pentium 4 3gig CPU with 1.2gig RAM with about 20gig free space on my hard-drive. any help would be much appreciated. cheers.