Since I upgraded to PL/SQL Developer Version 11, my copy and paste features randomly stop working until I restart my computer. This is extremely frustrating. I'm using a Windows 7 Professional OS. Hope someone can help.

This might not apply for v11, but in other versions people have had to do Tools / Preferences and in the User Interface section (on the left) click on Key Configuration - check if Edit / Cut and friends are set and if not click on the Reset to Default button at the lower right.

I just checked that setting and it looks like it is configured properly. I also tried the Reset to Default button but it still is not working.

Thanks for the response though Scott.

Copy does work, Paste doesnt. At least in my working environment with lots of programs running.

And nothing promising from Marko

Example: I've used PL/SQL Developer V11 for about a hour this morning and everything worked fine. Then, all of the sudden it just stopped working again. It will no longer work until I reboot my computer. There has to be a fix for this.

Try turning off "Include font style with Copy" option (Preferences -> Fonts).
I had a similar problem at my previous project with version 10 of PLD. It was most probably caused by some security software, which had to be installed and active on every company computer, and turning off that option was a workaround.

How PLD could be the only programm suffering from that?

Other programs copy-paste RTF texts just fine in the same environment.

And no, turning off "Include font style with Copy" doesnt help.

As IvanZ pointed out, the copy does work, it is the paste that stops working. I can copy from PL/SQL Developer and paste into notepad fine. But, if I copy from anywhere (PL/SQL Developer or notepad) and paste into PL/SQL Developer then the paste does not happen. PL/SQL Developer is my only program that has his happen. So yes, it does seem like the paste functionality is the only thing broken.

Just in case it helps. The only time I have problems with copy/paste is when I'm using a remote desktop. ctl-v stops working, but edit/paste from the menu does work.

Yea I'm not using a remote desktop. I have also tried pasting from the menu but that doesn't work either. The complete pasting functionality stops working.

Thanks for your response though Mike.