[1.0.29] Shaders for texture warp glitches mana bars

[Nash]

For Hexen, when "shaders for texture warp" is enabled, the mana bars on the status bar do not update anymore.

GeForce 7950GT SLI'ed, ForceWare 169.21, fullscreen 1280 x 1024

[Enjay]

Yup, same on my older card and older drivers at a variety of screen resolutions.

[Graf Zahl]

fixed