I had a similar issue and was eventually able to solve it. Like Sontar, when I would try to click on one of my quests in my journal, the game would transport me to the next page. Also, when I would go into my inventory and click on a piece of gear for one of my character, the game would blink and move me to the next character in the list. I think some items may have been disappearing during this, as well.
I hadn't made any updates or changes to my computer recently, so I was very confused as to why this was happening. To be safe, I checked to make sure my mouse and graphics card were up to date. They both were. Next, I started a new game to make sure that I wasn't having an issue with my saved files. The problem persisted in the new game, however. Then, I did a complete fresh install of the game. The problem was still there.
Finally, I reset my control options (in the control panel in the game) to default and the problem was solved. It seems that somehow two keys must have been linked to the same action, so the game would get confused when I would try to click on things. If you are having a problem similar to this, I would try to reset the controls to default before trying anything more drastic and time consuming.