I succesfully installed Comodo Antivirus X64 on a Server 2008 operating system.
Database Update finished succesfully and I run the software update - there was newer version and installed it, but after reboot the system I tried checking the software update - but it sends me this error message → http://img43.imageshack.us/img43/6882/imagexck.png
And now it shows about every an hour automatically.
The picture shows ,that you have downloaded the CIS5.
The best solution now will be , uninstal the version you have now on you PC.
Download a fresh instalation CIS6 from here . Important is also - after instalation just click FIX it - witch you will see on the CIS 6 interface. That will download all the update and make a quick scan - about 2 minuts. Aafter restarting the PC CIS6 is ready to work.