Do I need a new video card?

[Scott W]

When I expand a window that is minimized, it doesn't come up smoothly---it's as if it is fighting its way to expand. Jerky. Happens in all programs. Started 3 weeks ago. Need new video card? April 2009 2 X Quad core Macpro. 12 Gig RAM. Video Card = ATI Radeon HD 4870 512 MB.

 

[TacticalDesire]

I'm almost certain it's not the video card.

 

[MacVidCards]

install glview and see if it says you are using "software renderer" which would mean drivers aren't doing well

 

[bax2003]

If mine Radeon 2600 XT can smoothly minimize and restore widowses, 4870 could do 50 at the same time. Video card is not problem here.

 

[derbothaus]

Stop holding shift key down!

 

[MacVidCards]

in short, it sounds like your drivers are semi-buggered

If GLView reports your card as being your card, it's something else. If it says "Software Renderer" then the drivers didn't load and you are stuck in 2D mode.

 

[icyderguru]

Running Snow Leopard 10.6.8?

I believe they broke something because i experience the same on my 4870, + kernel panics.

edit:
The latest Cuda update fixed the problem for me.