No scroll bars when i added a table to a form

I need to have a vertical menu, but i don't want it visible through the whole application, so i cant use the navigation tree. I added a simple table and rendered some buttons as links on the left side of the page, but for some reason i can't scroll down now. Could somebody please advise me on possible problems or is this a bug? Any workaround will be appreciated as well. This is quite urgent.
1 answers

I hope this is useful