some users experienced problems, if they run trillian and avast!
Avast (Ashserv.exe) have some "bugs" or anything else and this is the reason, why your CPU is in "Fullwork" with 100percent.
the Problem is on avast, the alwil team correct the problem on avast and update it. Michael Tepass said, that they will fix it and on the next release of avast the problem shouldn't be there
Np for postig, hope I had help u, if not, e-mail me via Deathpoint@gmx.net