Unable to check out document in Sharepoint 2010

We have recently had a problem checking out documents from SharePoint 2010 in IE. After clicking OK in the dialogue box that pops up when attempting to check out, we are getting this message:


THE DOCUMENT COULD NOT BE CHECKED OUT. YOU MAY NOT HAVE PERMISSION TO CHECK OUT THE DOCUMENT OR IT IS ALREADY CHECKED OUT AND LOCKED FOR EDITING BY ANOTHER USER.

and wondering if anyone knows what is going on. We CAN check out in other browsers. We also had a problem with some of the buttons not working in SharePoint, but we found a workaround by switching to IE8 browser mode (any clue on what the deal is there as well?), however, the checkout does not work there either.

Any help would be greatly appreciated.
PAULADAMSJRAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ZamZ0Commented:
Couple of things to try:

Make sure the SharePoint site is in Trusted Sites, try setting the security level on Trusted Sites to low to see if that has any affect.

Make sure the addon (in IE tools- internet options - programs - manage add-ons) for Office Document Cache Handler is enabled.

MS Hotfix:

http://support.microsoft.com/kb/2661910
0
Justin SmithSr. System EngineerCommented:
Are you using the 64 bit version of IE?  If so, use 32 bit.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
PAULADAMSJRAuthor Commented:
Hi ACH1LLES, I have tried both...
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SharePoint

From novice to tech pro — start learning today.