Acrobat X Pro: Really slow opening files

I recently did the update to both AcroX and Reader. The first PDF file opens up quickly. Any second file takes a considerable amount of time--too much time. Mainly this  happen when I am trying to open up files over my companys network (a small business server). I find that local files on my computer do not appear to be affected by this. If the file is opened up over the network, any additional files can be simply dragged into the opened acrobat program and they open without problems. However, that is not a solution. Where is the "Priviledged locations" at?

I added "Priviledged locations" on my computer and the local network,which will be exempt from enhanced security. This seems to work. But I think there should be a default setting that only applies enhanced security to files that are opened from other places than the local network.

Try this in Reader: Go to Edit / preferences / general - then uncheck  the box "Enable protected mode at startup" . My Reader X was doing the  same thing and this cured it straight away. I haven't tried it in Pro but see no reason why it wouldn't work there too. I'm not sure where that would be located in Pro.

Anyone have any updates on this?

I just installed Adobe reader x and if I click on a link to a PDF on a site I can take the kids to school pick them up, do their homework then go out for a meal before a one page PDF opens.

Strangely I can right click and save it in an instant.

As an aside can I uninstall it and go back to 9 until this is fixed (I'm losing the will to live)

Thanks McP

I also experience that Acrobat X is really slow after the latest upgrade. I now have 10.1.0. Only remedy is to drag files to the program window instead of double-clicking. What is Adobe doing about this?? Also annoying with endless updates to fix safety issues in Acrobat.

I can confirm that this is also an issue for me — ever since the recent update.

Not only is there this weird slowness, Acrobat X periodically crashes whereas it was previously stable.

Surely Adobe already knows about this stuff from the Improvement Program data it collects? What is being done about it?

Same issue with X pro for me...very slow when opening documents..

Any update for this?

The below is an example which takes more than 30 seconds for executing a simple Acrobat JavaScript: app.launchURL:

http://www.openspc2.org/reibun/Acrobat8/javascript/app/028/sample/sample.pdf

(I am using Firefox 5.0)

In the case of other versions of Acrobat, by clicking the button, in a second or two seconds, I see Yahoo! Japan.

But in the case of Acrobat X(10.1  My computer is Vista Ultimate SP2), it takes more than 30 seconds until I see Yahoo! Japan.

Loading PDFs takes more time in Acrobat Pro 10.1 but at the same time executing Acrobat JavaScripts seems to be really problematic.

The same issue has occurred to me as well. I feel this is eminent at the opening of PDFs with Acrobat JavaScript.

I am wondering this happens in Adobe Reader 10.1 as well.

I also want Adobe to address this issue as soon as possible.

Am I really the only one with this problem???