Also - while in the default dashboard page, did you configure the block to be visible to all, as you described doing before?
Thanks to Adele, I think you may have another solution, or at the very least another thing to check - as an admin, you can access the block and the reports within, right? how about you access one of the reports, and copy the url (directly from the url bar).
It should look something like this:
http://yourmoodlesite.org.il/blocks/configurable_reports/viewreport.php?id=reportid&courseid=1
(the &courseid=1 is unnecessary I think).
Now, try navigating to this url while logged in as a non-admin user, and see if there is any error message or something like that.
If so, please post said error, maybe it will tell us something about the problem.
Otherwise, you could try, instead of embedding the configurable reports block directly in the dashboard, embed an html block or something like that, and in that block include links to the relevant reports. Not nearly as elegant, but hopefully functional for your situation.
But please, make all these checks after you make sure to click the 'Reset Dashboard for all users' as mentioned in the previous post. Otherwise, the changes in the dashboard will only affect new users (by the way, another good check - if you create a brand-new non-admin user, can you use it to access the reports?)
-Yaniv