This is a security issue, assuming the links you're talking about are link to web sites. You can control this behavior by configuring the Trust Manager under "Edit > Preferences > Trust Manager > Internet Access from PDF Files outside the web browser > Change Settings".
Links in pdf's should work as they used to in Adobe Acrobat/Reader. If you are facing this problem, first try the same with a different pdf file.
If the problem persists, then go to Control Panel of your system and select Add/Remove Programs (XP) or Programs (Vista/Win7). From there select the entry corresponding to Acrobat/Reader and select Change. Follow the instructions that appear and Repair your application from the options provided.
After this process is complete, restart your machine and try working with your pdf again.
Hope your problem gets resolved by this.
Thanks for your reply, which seems to be the right answer. Unfortunately when I go to "Edit > Preferences > Trust Manager > Internet Access from PDF Files outside the web browser > Change Settings". I can't change the setting to 'allow PDF files to access all websites' as none of the radio buttons are live and it is set on 'custom settings'. Nor can I enter any addresses as I can't click on that. Any suggestions as to how I get those buttons live?
Thanks again for your help.
Thanks for your reply - I have just done as you suggested, but sadly it didn't solve the problem - thanks again for trying to help!
Are the options still not selectable, or did you find out how to adjust them? What I described works for me, but I'm using an administrative account.
No, I can't get those options to be clickable - there's obviously some security setting I'm not managing to find that's stopping me from altering things as you've recommended. I've spent all afternoon messing with every possible setting, but no joy. Fortunately, when I hover over the anchor text in the PDF it gives me the destination url which I just have to write down and then put in my browser, but it's so annoying when I should be able just to click on it! ( and when I always used to be able to!)
Thanks, for trying - if you have a flash of inspiration, please let me know....
Is this your personal computer or a work computer that's maybe configured by IT folks?
It's my personal laptop - I have AVG security on it, but I always have had. The problems may have started when I last updated adobe, though I'm not sure of that - it's hard to remember.
I have recently discovered problems that appear to relate to the combination of AVG Internet Security 2011 and Adobe Reader 10 (on Windows XPSP3).
Although Reader v10 appeared to install it would not start - a quick flash of the Reader logo on the bottom bar and that was it! I also discovered that there was no Uninstall listed in the Add/Remove Progs.
However, starting in a limited mode (msconfig used to stop all non MS services and startups), Reader v10 was apparently willing to install again, on top of the existing one! This time an uninstall did display in Add/Remove Programs. However, restarting in normal mode (including AVG IS) then Reader fails to open properly.
So, tried installing Reader v9.4 (difficult to find a full download! used FileHippo.com) - this fails as Adobe reckoned a "more capable" version already installed!
Uninstall v10 and try again - now Reader works, albiet only version 9.4.
It appears that Reader v10.x and AVG Internet Security 2011 may well conflict.