Left mouse problem

I have been playing game since launch no problems and all of a sudden i cant cast my spells with the left mouse it is grayed out. Tried resetting and rebooting its still gray want swap my other spells to it also any ideas i can try?

I am having a similar issue. I was running a Ranger with lightning arrow skill bound to the left mouse button and was using it for both attacking and moving. I went to ClearFell to empty inventory and now the left mouse will only fire the lightning arrow skill and not move. When I change to a different skill ie.. poison arrow the left mouse will now move and attack as before. When I try to bind the lightning arrow skill back to the left mouse button I cannot move. However, all other bound skills to the left mouse button work as before both move and attack. Any ideas? lamo

This issue just happened to me today. The left mouse button is greyed out on the options window....cant even try and re-map it.

It started spamming non stop in silo map lvl 15 ...then stopped and no longer works.

Using lacerate w/ bleeding...never had this issue before.