Double references

Hi, 

I believe I posted a question in the wrong forum, therefore I post it again here in a revised version. 

EndNote has worked fine until yesterday, but now it inserts the reference more than once every time I press “Insert Selected Citation(s)”. The references get inserted multiple times and when I delete the extra references, EndNote sort of updates immediately and the references get inserted again automatically. It looks like this: 

“(Storm and Berg 2010, p. 10)(Storm and Berg 2010, p. 10)(Storm and Berg 2010, p. 10)(Storm and Berg 2010, p. 10)”. Does anyone have experience with this? Also, by accident I closed the EndNote Toolbar in Word and now I can’t figure out how to open it again. 

Kind regards
Mikkel