Hi,
I have this problem. Main form have uniqueinstance component. When I close the program normally everything is ok, but when I kill the process (from Lazarus - CTRL + F2 or directly with ubuntu) I can't run program again. This component thinks that one instance of my program is still running but is not, system monitor shows nothing. But when I change unique ID in uniqueinstance control or rename the output file then I can run program. Someone knows some alternative to uniqueinstance or knows how to fix this problem?
Regards.