About load this chrome page is because not set any web page to load at start.
Go to Preferences (F2) -> And setting "At Start Up" section.
For bookmarks option in menu bar you must enable Netscape Bookmarks plugin in Preferences (F2) -> Netscape Bookmarks -> Check "Enable support ..." option.
If this can't solved your problems, your profile can be corrupted, try to created a new profile.
All this problems happend when K-Meleon close inapropiated or crash happend and K-Meleon can't save your preferences in your profile.
K-Meleon in Spanish