Trojan in 90sp2_quartus_free.exe

Hello,

I've download the Quartus II web edition Software v9.0 Service Pack 2 directly from altera website

(https://www.altera.com/support/software/download/altera_design/quartus_we/dnl-quartus_we.jsp)

When installing it, the F-secure anti-virus stop the install and pop-up a window with an alert message :

"Code dangereux détecté dans le fichier C:\altera\90sp2\quartus\bin\mgcl65e.rra.

Infection : Trojan.Win32.Swizzor.b "

but i think the problem is with F-SECURE because I took a former version on DVD (Quartus II v8.0) and installing the free package, i've also got a popup from F-SECURE with :

Malicious code detected in file C:\altera\80\quartus\bin\mgclbeb.rra.

Infection : Trojan.Win32.Swizzor.b

Action : the file has been deleted

(The file rra seems to be temporary file for the install ....)

So, aim I the only one with problems with FSECURE (F-Secure Anti-Virus for Workstations 7.00 révision 220) and Quartus Install ?

Thanks