Blank zone issues in 2 zones so far

[Decad]

Hello,

I faced an issue as described above. The 2 zones involved are Lavastorm Mountains as well as Nektulos Forest.

When I zone in (either by running or teleport) I could not see any surroundings nor move. However I can see other player characters and they seem to be always "falling down" empty space.

When I attempt to run I am always running on the spot. Once I press the duck button I can no longer stand straight up again.

Other zones that i have been to so far seems ok (Oasis, Guk, Sro, Innothule, EC, WC, Misty to name a few ) but I didnt test every single one of them.

I have tried reinstalling by uninstalling and deleting the folder prior to a reinstall but the same problem still persist.

Not very sure if it is a graphics issue ( since some zones worked fine ), I am on a ATI 5800 series with the latest catalyst drivers.

Do advise.

Thanks!