Top Navigation menu flyouts render blank iframe in IE8

Question

I have a problem with an SharePoint 2007 site where the navigation menu flyouts (drop downs) render as a blank white space. This problem only happens on our clients network. It works fine on my own machine/network.

It renders like this:

But it should render like this: http://i52.tinypic.com/2hzfhx.png (broken image)

We have tested this in Chrome 7, FF3, IE6 and IE7 on multiple pc's within the clients network and only IE8 has this problem. I've checked to make sure that JavaScript and active x are enabled and that there are no group policies or anti-virus systems blocking this type of content (although I'm relying on our client to accurately provide me with this info).

When I switch the masterpage being used back to the default blueband, the problem does not occur which made me think it is related to our custom masterpage. BUT if this is the case, then why would it work in IE8 on my machine/network. Ignoring the latter, I decided to remove all js from the master page, this did not fix it, then I removed the css, this didn't fix it, then I replaced the navigation items in our custom master with those from blueband (SharePoint:AspMenu ID="GlobalNav" and PublishingNavigation:PortalSiteMapDataSource) - this didn't work either. Everything else in the page is just pure markup, and hence should not be affected by network or environment settings (or should it?)

Also, I found this previous post which sounds similar and states it was fixed by changing company intranet settings - although I don't know what settings those were.

What could cause DatePicker to render blank iframe?

Does anyone have any suggestions?

Answer 1

I have just managed to fix this issue.

While I don't fully understand the all the details of the problem, it seems the issue was related to the installation of Win Server 2003 R2 x64 Edition which our client was using.

The solution was to install this HotFix (http://support.microsoft.com/kb/981201). This fix supersedes a previous fix for this issue (http://support.microsoft.com/?id=962351) and can only be acquired by contacting MS support and requesting it directly.

I hope this helps anyone else who may experience similar issues.

Answer 2

Does it work on your network if you clear your browsers cache?

I'm just wondering - if you developed it, you might have a cached CSS file, different to the production one. It has the feel of a CSS issue.

Answer 3

Have experienced problems with SharePoint navigation that arises from the order that Office and IE are installed in. Not sure if this will appply to you here but try running a repair of MS Office, reboot and test again.

Failing that is everything checked in, published and approved? Have you used Fiddler to watch the page loading to see if there are any errors?

Cheers,

Chris

Answer 4

did you fix it already?

This may be a problem with the doctype of your page.

Try adding this meta tag on your page and see how it goes.

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />

It worked for me, hope it helps you :)

Let me know if you have any doubts or concerns about it

Regards