5.8 update killed the map.

I second that.

The block 'Location map' doesn't work anymore.
Another Block with custom code to show a map also stopped working.
I just see a blank div with nothing else in it.
Maps like node locations and user locations still work.
I'm using a dev version from early 2008.
At pages like "node locations" and "user locations" all gmap *.js files are injected.
At nodes with only a gmap block no *.js are injected at the beginning of the resulting html.

The interesting thing: also DHTML menu stopped working after upgraded to d5.8 showing the same *.js behaviour.
#281049: After upgrade to Drupal 5.8, DHTML Menu no longer works

Update: looks like a bug in block.module:
#281026: block module from 5.8 breaks css and js (reverting to 5.7 block.module fixes problem)

subscribing

I have a custom block in a module that renders a google map that also quit with 5.8 upgrade.

I seem to have tracked it down to block.module

then found this:
http://drupal.org/node/232037#comment-916605

probably same issue you guys are having with GMap

anyone see a difference with 5.9 ?

This has been fixed by drupal core 5.9 and works for me. The issue is adressed here:
#281042: regression in 5.8 from 5.7 theme('blocks','all') broken - so no header alteration possible

So this specific gmap issue can be closed.

Ronald

Double that. Upgrading 5.8 -> 5.9 did help to solve this issue for me. GMap module is Beta 3 though.