Still locking up

[Maxium]

Happens to me on average, every 90 - 120 minutes. I'll be playing and the game just freezes. I can't alt tab, I can't close it - I have to push the restart button on my computer and log in all over again.

I have a GeForce 210, and I run on Windows XP.

I can run Starcraft 2 on medium to high settings, but EQ 1 locks up?

Bit confused... has been going on for about 2 months.

(Also, playing a mage is worse, I have to resummon the blasted pet every time)

Any ideas?