Glad we could help.
And to answer your question:
However if i uncheck the option for "scanweb HTTP traffic " it will work fine again …
However I am still not sure if this is a clean solution
No, it’s not a “clean” solution. You’re basically turning off the web shield, which means it doesn’t scan webpages. Not to say that if you downloaded something infected from a website that the on-access scanner wouldn’t pick it up, but still not as secure as finding it in the first place.