I reinstalled Parallels (iMac 2Ghz duocore) and now I get following message at startup: "The virtual machine being started is going to switch VMX mode on. Parallels Desktop has detected that VMX mode is already activated by another running application. If that application will stop VMX, the virtual machine may behave unpredictably. Click Ok to start the virtual machine with VMX support, or click Cancel and edit VT-x settings.". I don't even have the slightest inkling which other app might be using this mode. Is there a way for me to find out?