I'm using Visual Studio 2008 on a 64-bit version of Vista. After my program stops on one of my breakpoints, I can't step over or into the current line without either an Illegal Instruction exception or an Access Violation exception being thrown by my application. If I right-click on the next line and choose "Run to here" (equivalent to "Step over"), it works fine.
Addendum: there is nothing in any watch windows.
Also, here's something I forgot to mention: if I attach to the process, everything works just fine.
Has anyone run into this problem before?