Markers drift on zoom

Very odd.

Hmm, assuming there isn't a bug on google's side, I think the 100% width and the Center alignment are most likely to be the source.

I changed width to 600px and removed the align, and it seems more accurate. Can you verify?

I have just seen this problem as well, with almost the same as setup as rob_beetleweb. I am also using "No Manager" for marker manager. The difference being that I am displaying the gmap as a View. Also, the problem is still there after I changed the width from 100% to 425px, and there is no center align. I have a site using the 4.7 version of the Gmap module that seems to place the marker very close to perfect on all zoom level, but with a dev site the marker is off by quite a bit and as you zoom it gets closer to the actual location.

Also, maybe not related but I thought I'd mention that the marker is big blue and I can't seem to change it, and I didn't select it in the first place. It used to default to the regular red one.

Here's the default location map:
[gmap|id=locmap|center=50.7364,-110.5664|zoom=3|width=425px|height=400px]

Here is a link to the 5.1 development version:
http://dev.vcnv.org/occupation-project/campaign-descriptions

and here is one to the live 4.7.4 version with the same data for the locations as above:
http://vcnv.org/occupation-project/campaign-descriptions

I'll post here if I find anything related to this problem.
Thanks for such a great module.
DS

Hmm, the shadows are missing too. Maybe the marker definition is screwy and it's using 0,0 for the tip of the marker or something similar.. Is there a certain pixel on the marker that always stays over the desired location? Perhaps it's placing the marker accurately, but with the pin-point in the wrong place.

About big blue:
That's what the code currently falls back to if it couldn't find the marker it was looking for. Yeah, it should be falling back to the one provided by Google, I need to fix that...

Thanks bdragon.

I need to apologize to say that at: http://dev.vcnv.org/occupation-project/campaign-descriptions
I ended up swapping the big blue marker for the default one by renaming and copying the default one to the big directory. When I revert back to the big blue file the problem persists.
With the replacement of the default marker it is now pin-pointed correctly without any drift, although I don't know why the shadow isn't showing up now. I'll keep testing and take a look at the code some more.
DS

Yikes.
The coordinates for the big/* markers were significantly off.

anchorX = 10
anchorY = 29
infoX = 17
infoY = 3

Here's better ones...

anchorX = 16
anchorY = 51
infoX = 24
infoY = 4

Fix committed to DRUPAL-5.
If you're using your own markers, just make a folder in markers and make an ini file to describe them. (See the other ini files for reference.)

The small red markers are the default ones provided by Google.
I changed the javascript code to use it instead of big blue when the type wasn't set on a marker.
Thanks for the report!