[regex-coach] 0.9.0 fails in xp pro sp2

Hi, I uninstalled by trusty Regex Coach 0.6.7 and installed 0.9.0 on Windows XP Pro SP 2. Everything seemed fine until I finished with "run regex coach" ticked. It says it failed in CreateProcess on The Regex Coach.exe with error number 14001. Trying it later from the icon gets a message that it failed because the application configuration is incorrect. I have re-uninstalled, reinstalled, re-downloaded and then back again and it's always the same. Anybody else have that problem? I'm on a Dell notebook. Cheers