I've seen variations of this annoying debugging problem, but none of those discussions have helped.
All of a sudden when I start debugging my program the breakpoints turn into clear circles with little question marks in them and they no longer work. When I float the mouse over them I get a message saying "The breakpoint will not currently be hit. The source code is different from the original version." The message then goes on to suggest that to fix the breakpoints I should "Right-click on the breakpoint and choose 'location'...(ect.)", well there is no 'location' option when I right-click on the breakpoint. This helpfull message says that alternately I could "disable the option 'Require source files to exactly match the original version' under Tools, Options, Debugging, General. So I go to Tools, Options, and guess what...there is no Debugging (you gotta love beta releases).
Has anyone come across this before? It will get very frustrating using this wonderfull, slick VB.NET IDE if I can't use the debugger!