In many games, right clicking makes the camera spin around 180º

In many games, right clicking makes the camera spin around 180º

I been having for quite a long time a weird problem with games like Team Fortress 2, Portal and other Source Engine games where right clicking would spin the camera around and face almost to the opposite way I was originally looking, and to the floor.
To name a few other games, I've also had this problem with Serious Sam 3 (SS2 and SS1:HD were fine), Metro 2033 and some others, and I've always been able to fix the issue enabling the mouse direct or raw input from the settings or via console commands.
But not with Alan Wake, that's why I'm asking for help!
I'm running Windows 7 Ultimate x64, an nVidia GTX 650 TI, and my mouse is a Logitech G5.
I have installed Logitech SetPoint to try if it fixed anything, but it did nothing. I also have Logitech Gaming Software to control my Keyboard and headset. (Yup, I like Logitech a lot).
The problem, as far as I know, is not related to the mouse itself, as I'm having the same issues with other mouses, to name them, a Logitech M100 and a cheap netbook mouse like those.
Of course, my antivirus (Microsoft Security Essentials) says that I have no virus, Malwarebites and the usual antivirus apps says that too, so I'm assuming that malware is not the issue, but here is the list of running processes, maybe you find something suspicious.
Image name                     PID Session Name        Session#    Mem Usage
========================= ======== ================ =========== ============
System Idle Process              0 Services                   0        24 KB
System                           4 Services                   0     1.056 KB
smss.exe                       292 Services                   0       984 KB
csrss.exe                      456 Services                   0     4.072 KB
wininit.exe                    516 Services                   0     3.860 KB
csrss.exe                      544 Console                    1    11.544 KB
services.exe                   580 Services                   0    10.416 KB
lsass.exe                      604 Services                   0     9.172 KB
lsm.exe                        616 Services                   0     4.008 KB
winlogon.exe                   624 Console                    1     6.048 KB
svchost.exe                    756 Services                   0     9.572 KB
nvvsvc.exe                     816 Services                   0     5.832 KB
svchost.exe                    856 Services                   0     7.328 KB
MsMpEng.exe                    912 Services                   0    59.288 KB
svchost.exe                    312 Services                   0    18.416 KB
svchost.exe                    356 Services                   0   124.840 KB
svchost.exe                    344 Services                   0    16.880 KB
svchost.exe                    704 Services                   0    36.968 KB
audiodg.exe                   1028 Services                   0    27.840 KB
svchost.exe                   1144 Services                   0     6.116 KB
svchost.exe                   1272 Services                   0    22.428 KB
nvxdsync.exe                  1356 Console                    1    12.924 KB
nvvsvc.exe                    1364 Console                    1     9.228 KB
spoolsv.exe