Millisecond Forums

If I am wrong, let me know, but I thought that's how radiobuttons worked. That's how it works on most computers, except for mine. The survey I have been working on lets me pick both yes and no, or all of the answers available, and the data reported isn't even close to right (although it still shows an answer). Is it because I am working off of the trial version? Is my computer too old and beaten up? Does Inquisit not work well on Macs? Has anyone experienced this before (a forum search gave me nothing)?