Can't cast any spells

[Naxan]

No matter what my mana is or what spell it is I can not cast. When I cast it says Spell has been interrupted and then I don't have enough mana. If I have like 50% mana and I cast a 10mana spell I go all the way to 0%. I have tried zoning, loging, restarting computer. I have made a lvl 1 mage and I can cast just fine. Any ideas?

[Gorgetrapper]

You need water.

Edit: I knew the answer before I read your message, common problem, many threads about it.

[Naxan]

Thanks I'll give it a shot.