AlphaCutoff not working properly on Macbook Pro 2010?

UI
1

So my team is working on an RPG, and we’d really like to use a circular-progress-bar for a certain GUI element. We decided to try and replicate the method used here:

http://answers.unity3d.com/questions/7449/creating-a-circular-progressbar-timer

I spent this morning attempting to do just that. However, my attempts at replicating it have all led to partial-transparency issues. Aftering banging my head against the wall for a while trying to figure out why theirs was working and mine was not, I noticed the link to the web player - so I followed it to see how their’s behaved in game. Turns out it wasn’t an issue with my elements, it’s an issue with alpha cutoff on my computer I suppose.

My teammate on a windows laptop sees the proper solid-green to solid-red interaction. I’m attaching a screenshot of what I see to this post.

Does anyone have a clue why that may be? Any suggestions on an alternative method to use to get around this issue perhaps?

Thanks in advance for any input/suggestions!

EDIT:
Edited to include GPU information from System Profiler

NVIDIA GeForce GT 330M:

Chipset Model: NVIDIA GeForce GT 330M
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0a29
Revision ID: 0x00a2
ROM Revision: 3560
gMux Version: 1.9.21

392930--13486--$alphacutoffissue_198.png

2

That demo looks the same for me, but I’ve used the same technique successfully (though I haven’t tested the result in a web browser build…) My guess would be that the effect you’re seeing is an artifact of the way the image(s) are set up – or are you saying that you see a different effect on another computer?

3

I mean I am seeing two different effects on different machines.

Going to this link:
http://www.starscenesoftware.com/stuff/unity/CircularHealthBar.html

To look at the demo.

On my mac it looks like the image I attached in my O.P. On my PC (and my bosses PC) it looks like the image found here:

http://www.starscenesoftware.com/stuff/unity/circular.jpg

The “PC” version is the desired version.