Access violation

On login some of our workstations are getting;

oooppsss...
The following message has been recorded.
Access violation at address 00000000. Read of address 00000000
If the above message/solution is not clear, and you are still encountering problems, we recommnd you log out from Commit, log in again and retry.

I would check network connectivity first. This is because CommitCRM client is shared between all network PCs (e.g. everyone runs the same files and the CommitCRM system is not really "installed" on each PC). Then verify the privileges of the logged in user (should have all access rights and all privileges to the entire 'Commit' folder tree).

Then - try to figure out what's common between all of these PCs. I understand that they've worked well so far - what have changed?

The only change has been the recent upgrade.

Thank you for your reply.

CommitCRM is not installed on client PCs, all you have is a desktop shortcut to a file on the server (or some local copied file in VPN mode).

If anything changed it is probably related to privileges.
Even if you did not change any other these, still, maybe the permissions of the new files (after the upgrade) is not the same as before.

Please verify that ALL users have ALL access rights and ALL privileges to the entire 'Commit' folder tree including all files and all sub-folders.

If works fine after the error message. You just have to hit ok each morning to login.

I will check permissions at some point.