OMG WHATS UP WITH THIS? (size issue)

Hey guys,
i just made like 10 lines of code changes, and it bumped my swf file from 142 kb to 374kb!!! Wat the??.. And also, it was being exported as Flash Player 7, and it said that it would not allow me to create linkage names for my objs in the library… :ne: Any idea wats gone wrong, its got me :(Please help. Merci.