EDIT: Changed title - I think my first post and last post are related to the same problem.
New weird problem. Just started when I upgraded to 0.54, but changing back to 0.52 did not fix it.
On my Server set up (Win7 x32), when I open Tools>Options window, I can't close it by clicking on the "OK" button. Whenever I click on OK, I just get the "spinning wait" icon, then the program says "not responding".
Then I have to click on the "X" on the Options box to end (which closes MC completely).
If I open the Options window and hit "Cancel" the window will close properly.
If I hit the "X" it will close properly, but if I hit "OK", even if I don't change any Options, it will still not close and MC will not respond.
If tried rebooting several times and rolled back to version 52 but problem persists. It only does this on the Server. I updated both Clients to 0.54 and do not have this issue.
Apparently something broke on the Server install when doing the 0.54 upgrade. I can go back to a previous System Restore - but I thought I would post here first to see if anyone else has seen this or if anyone has idea. Log attached for what it's worth.