I have recently built a site using silverstripe 2.4.5, I am running into this problem in IE.
Let's say you have one paragraph which is just one short phrase in you main content. For instance 'find out more'. In IE7, If you highlight this sentence, and then click 'Insert Link' image button. In the right hand Link column. The link text field will also include the '<p>' tag wrap around this sentence. Clicking the 'insert link' button on this form will result in following error.
'An error occurred. Please try again, or reload the CMS if the problem persist.'
'Error details: Unknown runtime error'
If I manually remove the '<p>' tag from the link text field, then click 'insert link', it will work fine. In firefox, repeat the above process, the '<p>' will not be included as part of the link text.
This error also applies to 'list'. Say you created a unordered list, highlight any list element, full line of course, then the '<li>' tag will gets included in link text field under IE7. same error.
If you highlight partial sentence, say one word out 'find out more', like highlighting 'out', inserting link will work normal.
Has anyone come cross this issue? I could tell my client to use firefox to avoid this, unfortunately their work station only have IE, installing any new software will require them to submit a support ticket and waiting for their IT department to do the new installation.
Any help will be deeply appreciated! Cheers.