a Virus
After finding a paper in Web of Knowledge I click on it and now Zotero redirects me to a website not related to the article I have just clicked on. This happens with any article from any journal, very crazy and unseen in my Zotero workflow. Is this a Virus? How to fix it? I have Windows 7. Thanks!
http://dp.thomsonib.com/doi/full/10.1021/jz101535f
But like I said it is not the same all the time
The only time Zotero redirects URLs is through it's proxy redirection feature.
http://www.zotero.org/support/proxies
you can check if that's gotten messed up somehow. (Start by disabling it and see if that fixes things. If it does, you can take a closer look at the settings.)
Also - does this only happen with WoS or also with other articles/databases?
proxy.mylibrary.edu
with some variations.
If you're not accessing a resource through your university/library/other institution and Zotero prompts you to add a proxy that's likely not right (feel free to report such cases - ideally Zotero should never do that and it's certainly very rare).