To be honest I would plumb for FP and you should check a few of them out at virustotal.

Check the offending/suspect file at: VirusTotal - Multi engine on-line virus scanner and report the findings here the URL in the Address bar of the VT results page.

If they prove to be FPs then you would have to report them as FPs on the MBAM forums.

http://forums.malwarebytes.org/index.php?showforum=42