I'm new to parallels and I'm currently using the free trial version in order to decide whether to buy the product or not. I have installed the kernel source/headers, the .deb package and ran parallels-config without any problems. However, when I try to start parallels via command line, I get the following error: parallels-linux: cannot connect to X server My host OS is Kubuntu 6.06 (Dapper Drake). Any help is much appreciated.