Descriptive Problem Summary:
If you have any control_freak flag enabled, F1 doesn't work. Even if you only have something like macros or editing skins disabled.
Numbered Steps to Reproduce Problem:
1. Disable editing skins or macros
2. Try pressing F1 to open Options and Messages.
Options and Messages to come up.
Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? (Visit http://www.byond.com/download/build to download old versions for testing.)