Cannot start a scan on F-Secure

I'm using F-Secure and am have problems with a Virus and Spyware protection malfunction and consequently am unable to run a manual scan.
First I re-booted my computer which did not solve it. After that I decided to uninstall and re-install the program but that did not solve the problem either.
My log shows that Aquarius update 2011, deepguard update 2011 , and Hydra update 2011-08 were not installed.
When I do a manual check for updates, it says I am up to date.
Any suggestions in how I can solve this problem as I'm concerned that I still am fully protected since a security warning popped-up from the Window Security Center .

 

use more tool to check if any malware is present and blocking your AV
https://www.wilderssecurity.com/showpost.php?p=1533481&postcount=3

 

i would reccomend contacting f-secure support here

dont forget to create a fsdiag report and send it with the support request.

 

see for solution
http://www.f-secure.com/en/web/home_global/support/article/kba/15626/p/1

 

Thanks Cudni, that seems to do the trick, as I checked the manual scan and it works, also the icon in the systems tray now has a message: "Your virus definitions are very old" and a little red circle with a white "x" in it is flashing continuously so presumable it's updating this right now.