Hrmmm... usually the F-keys problem is related to an F-lock key on the keyboard, but if your F1 key is working then its very strange. See this page for some ideas such as using an On Screen Keyboard:
http://www.stackandtile.com/sat/help/f-k...nt-working
Perhaps in the next version I will add an alternative to the F keys
http://www.stackandtile.com/sat/help/f-k...nt-working
Perhaps in the next version I will add an alternative to the F keys