Same here! Windows 7 x64. CS6. Acrobat X Pro shuts down very frequently (migth be several times a day according to usage), which drives me crazy. I used to work with other software like bluebeam which was really rock stable as compared to Acrobat X Pro. Actually I thought it was an "upgrade" as far as professionality is concerned.Yet it feels like an extreme downgrade as far as stability is concerned. No solution in sight?

Thank you for your hint! I read this before, but since I had not installed CS5 (rather CS6 was my first CS installation at all), I thought, this would not apply for me. Why should there be a licensing problem with a legally acquired and installed product? Why can't Adobe create an automated fix since they obviously threw a faulty product on the market?

Well, maybe I'll give a try. I am not sure though tha it helps. Since I already lost to much time with this annoying problem my motivation is low to fix the problems Adobe aught to fix.

But I do appreciate your supportive reply. Thanks again!

o.k., thank you, I'll give it a try!

Well ... it worked, when I followed your instructions. But: for two days only . Obviously there is a problem with the search function within Acrobat X. Because this time would stop to work "...does not work any more" (& shutdown), when I tried to open a document from the search list. Acrobat X showed this annoying behaviour very often in the past. This is a little bit different from the symptom where Acrobat X would disappear completely with no chance to get it running again. Only a new installation would help in such a case.

So we have to wait till Adobe acknowledges this problem and tries to find a fix.

I would like to tell u my story as well, i had the same problem, the program shut down on its own, so I reinstalled acrobate x pro. After that it would not recognise the serial number anymore, so i got in touch with a helpful adobe-guy which solved the problem after 5 hours on the chat (step 2 above!).

After some time now it happened again yesterday (also distiller) that the program just shut down and would not reopen at all.

I did the above relicensing again -without step1 - and it does work!! I think they should know how to approach this problem with all these descriptions, please do an update soon to get rid of this

mine works so far, try the chat, they are helpful - u need a lot of time but they might solve the problem! maybe the order in doing things was not right? there might be a difference in macs? good luck, post your progress please