That's peculiar. Mine defaults to 0% for every new shape, no matter what the previous shape's setting.
Have you tried quitting the application and/or shutting down and restarting your computer? If that doesn't work, then you might consider deleting your cache and/or preferences. On a Mac, these can be found at user/Library/Preferences/Adobe Fireworks CS6.
Turned my pc today and it appears to be working all okay. Got me stumped may it got bored with producing straight lines for a while. but the restart seems to fixed it . Thanks1.groove25 a reboot seems to be the order of the day
God I've got this happening to me right now - nothing I do fixes it. The larger I make the rectangle the more it attempts to round it. One day yesterday it suddenly started to work again but after i made a rounded rectangle it's back to this retarded bug. Wish I knew what I did the first time.
This drives me crazy. If anyone comes up with a solution to fix this i will love you forever...