Cannot Start IntelliJ X 96.1190 After Installing Erlang and Scala Plug-ins Follow

I'm running IntelliJ X 96.1190 on Windows XP SP3.

I downloaded the Scala and ErlGrey plugins and restarted, but IntelliJ complained about system index problems and wouldn't start.

I uninstalled IntelliJ, removed the folders under My Documents and Program Files, and reistalled from scratch.

I still can't start IntelliJ.  I get this popup.  Iv'e also attached the log file.

I thought a clean install would sort me out, but that's not the case.  How can I get IntelliJ back as quickly as possible?  Thanks.