I am running Windows 7 Home Premium SP 1. Most of the time when I open a PDF file everything is fine. However, I have lately had several PDF's open and when I open another, the File, Edit, View, Help tabs are missing as is all the info above where these tabs should be including the minimize, restore down, close icons. F9, F8 and Ctrl+Shift+M do not help. Any ideas?
Sounds like an issue with your graphics driver and Acro running out of resources for hardware accelerated page rendering. turn it off in the prefs and/or update your graphics driver.