So Hey Hi! If FW gives you the message “internal error occurred” and is blocked this is a quick way to un-block it:
1) Shut down FW through the Task Manager————-> ctrl+alt+canc
2) Go to——————-> C:\Users\<<username>>\AppData\Roaming\Adobe\Fireworks CS5
and proceed to change the name to the following folders (add a few letters at the end for ex.):
Fireworks CS6.mch —————> Fireworks CS6.mchOLD
Font Map.txt ———————–> Font Map.txtOLD
the language folder, for example Italian——————–> ItalianOLD or en_GB ——————–> en_GBOLD
3) Start Fireworks ———-> problem solved; FW recreated the folders not finding them under the correct name and we’re good.
I was going crazy searching for this fix, so hope this will help someone out also if similar solutions are already provided in various forums (sooo hidden though).