Can't stop running when i cast a spell

[Alzaroth_]

Hi,

I have a problem since months but i never signaled it before.

Sometimes (between 2 and 5 times per day) when I cast a spell my char start running on the left. I can stop him with rest but if I cast again he run. The only way to stop it for a long time is to relog.

I really don't understand because before (about 1 year ago) I didn't have this problem.

Thank you if you can help me and sorry for my bad english.